929/954 Shock Install (5th Gen)

Reason, the 954 shock has a remote oil reservoir that makes the oil last longer and regulates heat better, also the shock is fully adjustable. The vfr stock shock only has rebound adjustment and not compression, also it does not have a remote oil reservoir.

OK, never one to let fear and good judgment stand in my way, here we go:

Prop up tank and undo the upper shock mount:

954 shock install 001.jpg

Undo the bolt that holds the top mount to the shock:

954 shock install 002.jpg

Undo the lower triangle linkage:

954 shock install 003.jpg

Jack up the swing arm for clearance:

954 shock install 004.jpg

Out she comes:

954 shock install 005.jpg

954/VFR shocks side by each:

954 shock install 006.jpg

VFR upper shock bracket with bolt removed, plus 954 shock bracket for reference, man is that hollow bolt ever beefy:

954 shock install 007.jpg

Need to extend the VFR upper shock bracket approximately 42mm, so I got a 1/2" extra-heavy pipe collar, shortened it to suit like this:

954 shock install 008.jpg

It was bolted together in preparation for welding.

After welding and painting:

954 shock install 009.jpg

An M10x120mm bolt was needed to hold the modified mount in place. You'll note the washer, trimmed to clear the frame cross member. This is because I didn't want the pipe collar bearing directly against the aluminum frame, I wanted to spread the load over a larger area, hence the washer. Plus, I deliberately cut the collar a tad short so I could make up more ride height as required, limited by the lower dog bone/shock eye clearance issue. I found I'll need at least two more washers added:

954 shock install 010.jpg

954 shock install 011.jpg

I wound up shortening the bolt to 114mm, cleaned up the end threads with a die plus I ground down the bolt head to .175" (for adequate clearance of the upper shock eye) which is still thicker than the stock VFR mount bolt head was. Also used a Nylock nut to keep things attached.

Reinstall modded upper mount, bolt shock into place:

954 shock install 013.jpg

Reattach the triangle linkage:

954 shock install 014.jpg

Voilà! Shock install complete! Actually, I still need to add another couple of shims. Ride height is not quite where I want it.

I had originally done Ver 1.0 of the upper mount:

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954 shock install 015.jpg

But I decided it wasn't beefy enough, only 3mm wall thickness, and the OE shock bracket is 5mm.

So I fabbed Ver 2.0, but there's a wiring harness right there, and I was concerned about rubbing with the square tubing:

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954 shock install 016.jpg

So ultimately I went with Ver. 3.0 which has 6mm wall thickness and no possibility of rubbing on the wiring harness:

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954 shock install 009.jpg

The 2 differences in the 954 and 929 shocks are: spring rate and location of the gas canister. I used a 954 and changed it out for the 929. I only weight 140 lbs. The spring rate wasn't a problem. The 929 canister is farther away from the exhaust pipe. I felt more comfortable about that. The tech at Penske said that the oil temp in the shock is more controlled by the usage of the shock rather than it's environment. Either works fine.

VFR2XNice write up, very well informed. Question didn't the 54 shock resivoir get in the way? must not have or you would have said something. also this is on your VFR right?? Hmm wonder what is different between yours and a 4G? still a good job explaining.

Well, the reservior is sort of close to the exhaust system, like slightly less than an inch.

If you rotate it, there's interference between the plastic undertray and the reservoir, plus the damping adjuster screws would then face the wrong way and be obscured.

I thought about spinning the shock, but the part of the plastic undertray that interferes is a shield for the main wiring harness to/from the rear of the bike (ECU, etc) and I didn't feel comfortable cutting that away. Also there's a mount for a fuse ahead of the battery that sprouts off that plastic and you'd lose that too if you cut it away to make clearance for the reservoir.

ULEWZVery nice. I wonder if the spring is heavy enough as the 954 weighs about 100 lbs less then the VFR.

All in all, on a 5th gen, a 929 shock would probably be a better choice, fitment wise and spring rate wise. 929=15.3kg/mm, same as the VFR, 954 = 14.6kg/mm

As for the 4th gen, I can't say. Probably possible, but somebody else will have to chime in.

Nice post Rob ! :thumbsup:

For my spacer, I just used a piece of 1" aluminum 6 sided bar stock(solid) and drilled a hole in it for the bolt. Light, strong, easy.

[image: shockmount002.jpg]

:thumbsup:

I also agree the the 929 shock is the better way to go for this swap !

baileyrockI also agree the the 929 shock is the better way to go for this swap!

:beer: Like this one perhaps:

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...item=4596249503

[image: 1b_1.JPG] border='0' alt='user posted image' />

This post brought to you by Safe-T and Auctionsniper.com :salesman:

rmcobbIf a guy was going to get the 929 or 954 shock resprung and revalved, is the 929 still a better way to go than the 954......or does it matter?

From what I've been picking up, it seems that the 929 is easier to fit??

Randy

It's all in the way the reservoir faces.

See this post here for pics:

http://www.vfrdiscussion.com/forum/index.p...ndpost&p=186175

I thought I could find a way around it, and 954 shocks are newer, with the possibility of finding a mint one easier, so I got one, but there isn't an easy solution to the reservoir interference without cutting the undertray. Even then, the adjuster screws would face the wrong way and be obstructed.

But yea, 929 is a better fit physically and spring rate wise.

FotoMotoYou can back off the pre-load, place the top end in a vice or somehow restrain it, thread a screwdriver though the eyelet of the bottom end, and rotate the bottom 180.

The problem still remains that either the 954 shock reservoir will reside close to the rear cylinder's exhaust pipes if faced to the right, or interfere with the plastic undertray ahead of the battery if faced to the left. I thought about facing it rearward by rotating the upper shock mount, but that puts the compression damping adjuster screw facing the aft cylinder head.

And rotating the lower shock eye only moves the rebound damping adjustment screw, not the compression damping adjustment screw which is located at the top.

None of these problems exist with the 929 shock. So I'm switching to the 929 unit as soon as it arrives. Good thing they're cheap and plentiful. 26 bucks!

Dr. Toto made the call on the 954 shock interference and I thought I could carve out a way around it, but not without making compromises I didn't feel comfortable with. The interference between the reservoir and the undertray when faced to the left is greater than 1/2", maybe closer to 3/4"

Isn't Bodging fun??? :beer:

I am planning on doing this mod over the winter. I have been thinking of making an adjustable spacer. What do you think?

[image: gallery_829_77_4908.png] border='0' alt='user posted image' />

shock spacer

The outside dimension is 25mm across the flats. The small hole is 10mm threaded to fit the bracket mounting bolt. The Large hole is 18mm threaded to provide the adjustabe length. Minimum length is 30mm. Maximum is approximately 42mm with the half of the threaded portion inside. My first choice for material is aluminum since it would be easy to machine. Not sure if it would strong enough.

What do you think?

So, I went out and installed the 929 shock in place of the 954 unit today.

I feel somewhat better about having the correct spring rate, (15.3kg/mm Vs 14.6) and a lot better about how the reservoir is not so close to the exhaust system anymore. Good thing EBAY CBR shocks are cheep!

What I did discover was that the 929 shock is approximately 4mm longer than the 954 shock. At least the Erion 929 unit is. (The one with the white spring Vs. yellow)

I slid the shock home without tightening up any of the bolts and checked the unweighted ride height with the longer shock and modded upper mount. I had wanted to increase it further after the initial install of the 954 shock, so with the longer unit, it seemed prudent to check first.

I wound up with 12mm more ride height as compared to stock but I figured I could still obtain a tad more yet, so I removed the shock and upper mount again and added a second washer in addition to the one shown in this pic:

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The second washer all by itself gave me approximately 3mm more ride height.

Glad now that I made the modded upper mount on the short side to begin with.

There isn't really any easy way to increase it further, I could possibly slide in 1 more washer without having the lower shock eye contact the dogbone, but the forward mounting bolt of my hugger would contact the inside surface of the LH peg bracket. I could remove the peg bracket and relieve it in that spot, but it didn't seem important enough to try. Also, with a new rear tire and full tread, the rear tire will probably be either only a couple mm off of or maybe even lightly resting on the ground with the bike on the centerstand anyway. Can't go much more than that in any practical sense.

SO, after all is said and done, I've got 15mm more rear ride height than stock and 11mm less ride height in the front. Mind you, this is completely based on unweighted measurements IE: wheels totally off the ground in each case, measuring from the axle to a reference point on the frame.

This should nullify the effects of the greater trail from the RC51/954 triple clamps and once I get a fresh rear tire it should steer as quick as or quicker than stock.

Hurry Spring! :wheel:

BarmyWonder if I might ask a couple questions, since I now have time to work on the VFR. Mine ('98 purchased in september) is purported to have been computracked and modded. I do think my rear is higher, and it has an Ohlin shock. Apparently, the dogbone and lower bracket are off a 929 which some suspension guru did.

Did you use the other components, or just the shock?

Are there a part numbers stamped on the components that allow me to verify the orignal application?

Lastly, is the purpose of your mod simply to gain a more efficient shock, or are you "tweaking" things for handling?

Thanx, Rick

The shock is off an Erion edition 929, the triangle linkage and dogbone are standard VFR800 items.

The 929 coincedentally has the same spring rate as the VFR, 15.3 kg/mm

The reason for the shock install is to complement the front end which has been swapped out for RC51 forks and brakes.

The 929 shock is 3-way adjustable and has the same stroke length as the VFR shock.

So I gain compression damping adjustment and an external reservoir.

I'd surely like an Ohlins or HyperPro or WP shock, but this rear shock is a real bargain compared to an aftermarket unit.

Maybe eventually if I find a used shock in good shape I'll pick it up, but I didn't have a grand for Ohlins or even 500 for a HyperPro. Translate that from USD to Cdn and it's $$$ quick.

And raising the rear ride height is to compensate for the increased trail due to fitting the RC51/CBR954 triple clamps.

[image: gallery_554_564_20628.jpg] border='0' alt='user posted image' />

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Picture005.jpg

BarmyOK, thanx. I kinda understood, but I am new to the VFR fold. Just sold my BMW RT.

P.S. That's nice, but are you sure you can still call it a VFR?? :lol:

Actually, i'm calling it a GL800RR-SP2 now. :wheel:

GL = Goldwing for the touring mods

800 = obvious

RR = for the performance mods

SP2 = for the RC51 forks

Hope you enjoy the smoothness of the VFR. I rode passenger on a BMW Boxer once and I'm not sure how anyone could stand the vibration. I figured an opposed motor would be smooth, but I guess it needs to be a 4 or a 6 like the 'wing or a Volkswagen or a Subaru.

Hey Doc

Heres a side by side comparison. The springs are the same diameter.

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929 shock

TurboPackMuleIs it just me, or does that 929 shock look wayyy shorter than the original?

You ever get this sorted? (I see this post is several months old...)

Yes it is shorter, but has almost identical shock stoke length. IIRC, 57mm Vs 58mm

It's shorter because of the design on the shock, Internal reservior for the VFR Vs external reservior for the CBR.

The longer upper shock mount takes care of the difference in length.

[image: gallery_554_564_114042.jpg] border='0' alt='user posted image' />

954 shock install 011.jpg

It's sorted (using a 929 shock, not a 954) and working fine in the limited ride time I've had (75km).

bigguidoWill a SHock from a 2002 gixxer 1000 work seems to look the same as the 929?

I have absolutely no idea. Let me have a look.

<disappears into the internet>

:joystick:

<reappears armed with facts>

:pissed:

First off, the '99 VFR shock spring rate is 15.3kg/mm, the 929 is coincidentally, exactly the same.

2002 GSXR1000 is only 7.7 kg/mm.

So right off the hop, your spring is like half as stiff as it needs to be.

Need: new spring. And revalving to suit said spring.

Length: GSXR shock = 329mm, which is longer than a VFR800 shock by 4mm. Probably would fit and raise the rear of the bike by approx. 10mm overall with the stock upper shock mount. This is a good thing in and of itself.

Shock stroke length, GSXR= 74mm Vs VFR800 which is only 58mm.

So you'd have waay too much wheel travel and the swingarm would extend upwards too much at full compression. Like an extra inch and a half more upwards travel. 6.6" Vs 5.1" Not good.

The only way I could see it working is to respring the shock, revalve it for the new twice as stiff spring, and fit some sort of internal stop to limit the shock's travel to 58mm of stroke.

Probably it's doable by a professional suspension shop like Racetech, Aftershocks, Lindemann, Traxxion, etc, but by the time you did all that, you could buy an aftermarket shock and be off riding.

veefer800canuckThe longer upper shock mount takes care of the difference in length.

[image: gallery_554_564_114042.jpg] border='0' alt='user posted image' />

954 shock install 011.jpg

It's sorted (using a 929 shock, not a 954) and working fine in the limited ride time I've had (75km).

<{POST_SNAPBACK}>

Oooh....oooooh! I have a picture like that! [of course, I learn't it from veefer, HS, BR and other pioneers here! :thumbsup: ]

[image: gallery_4707_1061_1354762.jpg] border='0' alt='user posted image' />

Finished Shock Extention Tack Welded to OEM Bracket, and with Top Washer Tack Welded too, for Load Bearing on Frame Mount, and a Flat Spot on Washer for Clearance at Mount

magellanOkay, shop monkeys, it's time to stop showing off welding skills and talk about seat of the pants riding impressions!  :P

Is there significant improvement in feel and control?

Well, the ride is certainly more "taut" for lack of a better description.

I still haven't foodled with all the adjustments yet. I've only been through one tank of fuel so far this year.

I've basically got the 929 shock set at the factory default settings (for a 929 that is).

When I get some more time, I'll mess with it more. But I have absolutely no idea when I'll have more time. :beer:

Somebody wanna send me some? :joystick:

Rob, thanks for your great write-up! I was inspired by reading it and decided for this season to upgrade to a 929 strut.

My parts list:

'00 929RR Erion Edition shock ($21 shipped from *bay)

1/2" x 4" galvanized steel plumbing pipe ($3 from Lowes)

M10 x 1.50 x 110mm bolt ($2.75 from local supplier)

3 steel washers ($0.48 from Lowes)

M10 x 1.50 lock nut ($1.45 for two pack from Lowes)

2 1/4" alternator spacer from '64-'76 V8 Mopar (on hand)

Hint: if you can find a M10 x 1.25 x 110mm bolt, you could use the the stock lock nut, which has a metal lock instead of nylon. They were out of stock locally...

Pulling the stocker was a snap thanks to jacking up the swing arm!

Getting the tack welded bolt off the VFR mount was a b*tch. I used an air saw then the Chevy tool (32oz hammer) with the mount in a vice to encourage the welds to let go. Here's what came out:

[image: gallery_1047_3908_11773.jpg]

(sorry the image isn't clearer, using a borrowed camera)

After measuring and re-measuring, I cut my spacer pipe to ~37mm (1.455" according to the dial caliper). With the reservoir barely touching the undertail, rear height is up ~12mm. My 3 stack of washers measured 0.241" for a total additional spacing of ~43mm (1.696") from stock.

Here is the mount before priming and paint:

[image: gallery_1047_3908_8946.jpg]

And here's the alternator spacer inside the pipe. It pressed in easily with the vice:

The shock will slip into place with the new spacer/mount already attached (don't torque fully until it is in place).

I used these guidelines to preset the shock:

http://www.sportrider.com/bikes/146_suspen...ngs/index4.html

Hope this helps somebody else looking to do the same update.

Tomorrow will be setting the sag and going on a check ride. Wish me luck!

Riding Impressions

This is a whole nuther bike. Everything feels more stable: in the turns, over rough road, putting power to the ground. I feel like I'm riding slow because of the difference from stock.

I've ridden a buddy's track prepped '01 R1 quite a bit. It has an Ohlins. I would say the 929 rear suspension setup on my VFR is equally confidence inspiring.

Of course, now the front suspension's limitations seem even more pronounced. I can only imagine the handling prowess and stopping power of an RC51 fork/brake swap. Hoping to at least go Race Tech springs/valves with F3 cartridge meld.

I would suggest this update to anybody not timid of the detailed steps. Even if you don't have access to a welder, you can measure everything and have a local shop weld the spacer in place.

Also, I checked the price on the upper mount ($9.89) just in case I needed to fall back to the stocker. Might be a good backup for anybody on the fence:

http://www.ronayers.com/browseparts.cfm?se...g=50233-MZ7-000

Now there are no excuses wink.gif

WTF? I've got mine all fabbed up and am trying to install, but the only way it fits puts the adjustment screws to the RIGHT side of the bike where it is rather difficult to get at them. Been scouring the site for a pic of one installed, and all I've come up with is this one from Rob:

But I think that is a 954 shock from the way I read it. What am I missing here?!?!?! I haven't ridden in six months, I NEED to get this back together!!!

Edit: here is my shock, from what I've read I believe it's a 929 item. Perhaps I am mistaken?

[image: 63f8_1_b.JPG]

Don't know how helpful this is going to be seeing as how my bike is in pieces at the moment.

I guess you can see the shock really well, but nothing else.

Maybe the interference with the plastic undertray you are experiencing is not a problem for me because of my underseat exhaust?

I cut and modified the plastic battery box and rotated it forward as much as possible for the exhaust project.

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[image: 000_0100.jpg]

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Good luck, I'm sure you can make it work. Maybe trim the battery box if possible?

Oh, and the shock in the first pics in this thread IS a 954 shock, the one with the yellow spring and gold reservoir.

The later shock with the white spring and the black reservoir is an Erion edition 929 shock.

Yours is a 929 shock based on the reservoir design, spring colour be damned.

snowparangBesides the 929/954 shocks, any other compatible ones? RC51? Ducatis? R1s/R6s?

Compatible as in mounting points, length and travel. Spring is not a big issue as it can be replaced quite easily.

i just put an f4i shock on mine. .5" shorter, so you simply add washers or spacer, but standard mount worked great. upgraded my spring and had it revalved. shock was ~$20-30 OFF ebay and the spring was $100 and the revalve was $150...so $300 and i practically have a new show w/ reservoir and compression adj.

here is link:

http://www.vfrdiscussion.com/forum/index.p...mp;#entry395670

mechdziner714I am looking to do the 929 shock upgrade to my 5th gen soon. Is there a particular model year 929 shock needed. I was also wondering if pre-load adjustments are still easy, as they are w/ the 5th stocker? Would it be worthwhile to have it revalved/rebuilt before installing. My guess is its easy enough to remove and have re-worked if it turns out the one I get from fleabay is worn out.

The 929's were only made in 00-01 models and standard one's had a yellow spring and Erion models had white springs. Stock they have the SAME spring rate as the VFR so other than spacing it's a straight bolt in w/o mods. Most people want/need a heavier spring on the VFR so that would also apply to the CBR shock on the VFR, but you can sure run it untill you plan to upgrade the rest of the suspension w/o issue! :thumbsup:

Someone here did use a 954 shock too if I'm not mistaken, but the 929 is the easiest mod for the 5th gen.

Also look here.

http://www.vfrdiscussion.com/forum/index.p...c+shock+options

admw12I have a 2004 and neither the 929 nor the 954 shock will fit either way( facing left or right) and keep the same ride height. I made a spacer the length of the difference between the stock shock and the 954/929, well the res on the 954 hits the engine, and the 929 hits a hard line ( hydralic probably). So now I have to buy a longer bolt and make a longer spacer. This however will change my ride geometry and change the handling of the bike. Something I wish I didn't have to do. Anyhow, anyone have any other suggestions ( rather than buying a $1000 shock).

Check here, he installed a 929/954 shock on a Vtec!

http://www.vfrdiscussion.com/forum/index.p...0506&hl=929

Has any of VFRD's master fabricators gone into the business of making up 929 shock adapter kits for us less gifted members? I am sure there is a market for such a item.

So for the people that have done the bracket welding, are you just welding the hex head of the bolt right to the top of the bracket, or is it below next to the shock? I'm really fuzzy on this part and I don't see any pictures that show how the bolt gets welded to the bracket.

One picture shows the old bolt totally removed and the new bolt sticking up through the bracket. But the hex head is below the bracket, and in later pictures it's gone. Do you weld it to the bracket and then cut off the hex head? Or???

Help! I am stuck at this step and want to get my bike put back together.

1995 VFR with a 929 shock.

Thanks!

I had to grind the bolt head thinner so it would clear the shock eye, then I installed the lengthened bracket into the frame, then bolted the shock to the bracket.

The 954 spring is stiffer than the VFR/929 spring, yes?

havent done the front yet, I,m waiting for thermosman to steer me in the definitave direction (and help with parts). prolly going to do the F3 cartridge swap with some good springs and fresh oil (obviously)

I am heavier than a honda test rider because those guys are about a buck o five wet and I am 220. Plus, who knows how old the spring was???

So... I decided to follow the trend and replace the rear shock on my 4th gen VFR with a newer CBR929 part. Here are the measurements I got:
- 4th gen VFR shock, eye center to eye center fully extended - 324mm
- CBR929 (yellow spring) shock, eye center to eye center fully extended - 288mm (36mm shorter)
- 4th gen VFR shock bracket, eye center to top surface - 25mm
- New bracket to be made, eye center to top surface - 61mm
Any corrections and suggestions would be greatly appreciated.
[image: Posted Image]

The VFR shock should be 325mm and the CBR929 one is 287mm for a difference of 38mm.

More ride height helps on these bikes. I usually suggest at least 5mm but you can run up to 10mm if desired.

Another progress report...
The new shock is in place. The battery box was a pain to reinstall. The ignition coils did not fit (the oil reservoir occupies a part of their private space) and had to be relocated. I was going to take pictures, but I lost my camera somewhere. Oh well...

I just finished this mod on my fourth gen.

I just finished this mod on my fourth gen.

When you were removing the 4th gen riginal shock, did you get any clearance problems? I'm fighting the removal of mine at the moment. I've removed the lower triangle plates, unbolted the top shock mount at the frame but it doesn't want to drop out, bottom shock eye hits the lower dog bone and won't go low enough to wriggle the shock out. Any ideas?

When you were removing the 4th gen riginal shock, did you get any clearance problems?

When you were removing the 4th gen riginal shock, did you get any clearance problems?

The 4th gen shock WILL NOT go out from the bottom, even if you take the triangle and the dog bone off (which you should do anyway to clean and lubricate the bearings inside it). The hole in the swingarm is not big enough.
You need to remove the ignition coils (easy), the starter relay (easy), the battery (easy) and the battery box (not so easy). Then the shock will happily slide up and out.

While I've got easy access to the new shock, what base line settings are people using?

While I've got easy access to the new shock, what base line settings are people using?

Baseline? Sag? Preload? Rebound? Spring rate? Don't talk that advanced jargon to me, I will be happy just to have a shock that works. :cool:

Progress report... I bought a replacement bolt (100mm, which is 30mm longer than stock) and made the aluminum spacer (see the drawing below; unfortunately, it does not look as good in flesh - made with a hacksaw and a file instead of a milling machine). The 929 shock seems to fit, I will probably try to put it all together tomorrow.
[image: Posted Image]

So... I decided to follow the trend and replace the rear shock on my 4th gen VFR with a newer CBR929 part. Here are the measurements I got:
- 4th gen VFR shock, eye center to eye center fully extended - 324mm
- CBR929 (yellow spring) shock, eye center to eye center fully extended - 288mm (36mm shorter)
- 4th gen VFR shock bracket, eye center to top surface - 25mm
- New bracket to be made, eye center to top surface - 61mm
Any corrections and suggestions would be greatly appreciated.
[image: Posted Image]

Like I said, making 20 is just as easy as making 1.

Does the VFR spanner wrench work on the 929 shock??

I have seen several of these with round spacers. Anyone concerned about the shock rotating, since the oem square bracket is no longer "keyed" by the frame channel? I guess it's remote, but I don't know for sure.


Zach - I have a stock 5th Gen mount on order. ONce it arrives, I'll try to take some measurements if you're still looking. I also have a 929 shock, so I can take some measurements of that, as well.

Dan B

I have seen several of these with round spacers. Anyone concerned about the shock rotating, since the oem square bracket is no longer "keyed" by the frame channel? I guess it's remote, but I don't know for sure.

I have seen several of these with round spacers. Anyone concerned about the shock rotating, since the oem square bracket is no longer "keyed" by the frame channel? I guess it's remote, but I don't know for sure.

Does the VFR spanner wrench work on the 929 shock??

If you are talking about the spanner that you use to adjust chain tension, then no. You need to buy (or otherwise procure) the CBR pin wrench (part number 89202-KY1-700, $11.28 at Honda Direct Line.) It's a fairly straight shot on my 4th gen, don't know about 5th.

I have seen several of these with round spacers. Anyone concerned about the shock rotating, since the oem square bracket is no longer "keyed" by the frame channel? I guess it's remote, but I don't know for sure.

Mine never moved.

All the forces on the shock are vertical, there are no rotational forces in play.

I have seen several of these with round spacers. Anyone concerned about the shock rotating, since the oem square bracket is no longer "keyed" by the frame channel? I guess it's remote, but I don't know for sure.

Mine never moved.

All the forces on the shock are vertical, there are no rotational forces in play.

Unless, of course, you ever want to adjust the preload. It's "keyed" to the crossmember in the oem version, I figured that was why.
Dan B

I have seen several of these with round spacers. Anyone concerned about the shock rotating, since the oem square bracket is no longer "keyed" by the frame channel? I guess it's remote, but I don't know for sure.


Zach - I have a stock 5th Gen mount on order. ONce it arrives, I'll try to take some measurements if you're still looking. I also have a 929 shock, so I can take some measurements of that, as well.

Dan B

Thanks, but I couldn't wait so I bought a mount and I already have my shock. I got as far as measuring and drawing up the stock mount, just haven't made up longer mounts yet, or the flats to have them cut out on the laser :blink: Once I'm done with it I'll one for sale, and as soon as I get the new shock in I'll have another useless one :blink: I need to either look at my notes or read through this again :fing02: to see what kind of dimensions worked for others and then I was going to make a few mounts, in something like 5mm increments. I'm hoping to make it along the same design of the stock mount, but tall of flanges are kind of limiting with the tooling we have for forming and also being that much taller it will need more support so it doesn't fold over...

I don't think there should be any concern for the upper shock mount rotating. There are no forces exerting on it to do so and as long as the mount is tight...

Zach571

I have seen several of these with round spacers. Anyone concerned about the shock rotating, since the oem square bracket is no longer "keyed" by the frame channel? I guess it's remote, but I don't know for sure.


Zach - I have a stock 5th Gen mount on order. ONce it arrives, I'll try to take some measurements if you're still looking. I also have a 929 shock, so I can take some measurements of that, as well.

Dan B

Thanks, but I couldn't wait so I bought a mount and I already have my shock. I got as far as measuring and drawing up the stock mount, just haven't made up longer mounts yet, or the flats to have them cut out on the laser :blink: Once I'm done with it I'll one for sale, and as soon as I get the new shock in I'll have another useless one :blink: I need to either look at my notes or read through this again :fing02: to see what kind of dimensions worked for others and then I was going to make a few mounts, in something like 5mm increments. I'm hoping to make it along the same design of the stock mount, but tall of flanges are kind of limiting with the tooling we have for forming and also being that much taller it will need more support so it doesn't fold over...

I don't think there should be any concern for the upper shock mount rotating. There are no forces exerting on it to do so and as long as the mount is tight...

Zach571

I'd be very interested in one of your brackets when you get them made up. I have the shock already, it's just sitting there in a box waiting for the slightly warmer weather so I can get my ass in gear and do this mod.

Please, let me know when you have some done.

Thanks,
Paul.

I have seen several of these with round spacers. Anyone concerned about the shock rotating, since the oem square bracket is no longer "keyed" by the frame channel? I guess it's remote, but I don't know for sure.


Zach - I have a stock 5th Gen mount on order. ONce it arrives, I'll try to take some measurements if you're still looking. I also have a 929 shock, so I can take some measurements of that, as well.

Dan B

Thanks, but I couldn't wait so I bought a mount and I already have my shock. I got as far as measuring and drawing up the stock mount, just haven't made up longer mounts yet, or the flats to have them cut out on the laser :biggrin: Once I'm done with it I'll one for sale, and as soon as I get the new shock in I'll have another useless one :blush: I need to either look at my notes or read through this again :biggrin: to see what kind of dimensions worked for others and then I was going to make a few mounts, in something like 5mm increments. I'm hoping to make it along the same design of the stock mount, but tall of flanges are kind of limiting with the tooling we have for forming and also being that much taller it will need more support so it doesn't fold over...

I don't think there should be any concern for the upper shock mount rotating. There are no forces exerting on it to do so and as long as the mount is tight...

Zach571

I'd be very interested in one of your brackets when you get them made up. I have the shock already, it's just sitting there in a box waiting for the slightly warmer weather so I can get my ass in gear and do this mod.

Please, let me know when you have some done.

Thanks,
Paul.

http://www.vfrdiscus...tyle_emoticons/default/+1.gif

Have a shock ready to go would like to see a bracket also.

Progress report... I bought a replacement bolt (100mm, which is 30mm longer than stock) and made the aluminum spacer (see the drawing below; unfortunately, it does not look as good in flesh - made with a hacksaw and a file instead of a milling machine). The 929 shock seems to fit, I will probably try to put it all together tomorrow.
[image: Posted Image]

This would be the perfect bracket for the fourth gen!

Just to clarify my measurements, the 41.5mm measurement on my adapter corresponds to CitizenOfDreams' 36mm measurement.

That would be awesome earache, the drawing there though is for a fourth gen bike, we or at least I need one for a fifth gen, I think the size is a little different, but really sure of the size. Does anybody else have the correct 5th gen specs.?

That would be awesome earache, the drawing there though is for a fourth gen bike, we or at least I need one for a fifth gen, I think the size is a little different, but really sure of the size. Does anybody else have the correct 5th gen specs.?

Gotcha - someone come up with the dimensions and I'll make a couple of them.

That would be awesome earache, the drawing there though is for a fourth gen bike, we or at least I need one for a fifth gen, I think the size is a little different, but really sure of the size. Does anybody else have the correct 5th gen specs.?

Gotcha - someone come up with the dimensions and I'll make a couple of them.

I could use some final dimensions as well for what works for the 5th gen. Either the specs of your mount, our the difference between your mount and the factory mount. Seems the R and D has been done already and I won't be able to try out different lengths till April at the very earliest. The final length of the 5th gen mounts hasn't really been spelled out too well, yet. Thanks for any help on that.

I'll post up when I get some done, but would be easier if I had a dimension to work with :fing02:

Zach571

That would be awesome earache, the drawing there though is for a fourth gen bike, we or at least I need one for a fifth gen, I think the size is a little different, but really sure of the size. Does anybody else have the correct 5th gen specs.?

Gotcha - someone come up with the dimensions and I'll make a couple of them.

I could use some final dimensions as well for what works for the 5th gen. Either the specs of your mount, our the difference between your mount and the factory mount. Seems the R and D has been done already and I won't be able to try out different lengths till April at the very earliest. The final length of the 5th gen mounts hasn't really been spelled out too well, yet. Thanks for any help on that.

I'll post up when I get some done, but would be easier if I had a dimension to work with :fing02:

Zach571

Hey Zach - thought I'd follow up on this...need to get the beast fixed up for an upcoming ride.

I know you have a stock bracket in hand, so I am 99% sure you need to add 42mm in height to the existing bracket, and the resulting longer bolt would need to be 110-115mm long, M10 diameter.

I called a welder, sent him some pics and mockup...said it would cost $200 to add the spacer, or $150 to just fab a new, longer bracket, like the one you drew.

Any chance you can fab one up for me for less than that?

Dan B

That would be awesome earache, the drawing there though is for a fourth gen bike, we or at least I need one for a fifth gen, I think the size is a little different, but really sure of the size. Does anybody else have the correct 5th gen specs.?

Gotcha - someone come up with the dimensions and I'll make a couple of them.

I could use some final dimensions as well for what works for the 5th gen. Either the specs of your mount, our the difference between your mount and the factory mount. Seems the R and D has been done already and I won't be able to try out different lengths till April at the very earliest. The final length of the 5th gen mounts hasn't really been spelled out too well, yet. Thanks for any help on that.

I'll post up when I get some done, but would be easier if I had a dimension to work with :fing02:

Zach571

Hey Zach - thought I'd follow up on this...need to get the beast fixed up for an upcoming ride.

I know you have a stock bracket in hand, so I am 99% sure you need to add 42mm in height to the existing bracket, and the resulting longer bolt would need to be 110-115mm long, M10 diameter.

I called a welder, sent him some pics and mockup...said it would cost $200 to add the spacer, or $150 to just fab a new, longer bracket, like the one you drew.

Any chance you can fab one up for me for less than that?

Dan B

Uh, yea, I should be able to beat $200 no problem, including shipping http://www.vfrdiscus...tyle_emoticons/default/wink.gif . 42mm sounds right as well from what I recall reading through this thread. I'm really hoping some of these guys who have had there's in for a while will post up how its working for them and either the new dimensions of their bracket or how much longer their bracket is now. My design, (if it works out, gotta make one up and see how it looks as far as strength goes) will require a new bolt, but will not require it to be any longer than the stock one. Not to mention, shouldn't require any welding, unless there a gusset will be required with that extra length, an inch and 5/8's is how much longer the bracket will need to be. Also, it should be "keyed" with the frame rail as the factory one is.

Dan B, pm me on the subject. How soon are you looking for this?? I'm thinking of installing my 929 shock after I can put a couple hundred miles on this spring. That way I have something to compare it too, need to refamiliarize myself with how it handles with the stock one first. Anyways, that boils down to the fact that I may not be the first one to use my bracket :biggrin:

Zach571

My wife got me an ebay 929 shock with triangles and dog bone for xmas.

I finally have my workshop such that I can nearly walk into it without tripping on boxes and bins and what not.

Seb suggested I use one end of the dogbone for the spacer, so I took out my trusty sawzall and went to it.

The first blade I attempted to use was a carbide/diamond blade for cutting hard metal. After 20 minutes of sawing I ended up with a clogged blade and barely cut into the dog bone. So I pulled a new 'demolition' blade out and chucked it into the saw. 30 seconds later I had both sides of the dogbone cut. I'll use a grinding bit in my drill press to smooth everything over.

I still can't find my calipers, but my metric tape measure says that the DB is ~34mm. According to previous posts it looks like I'll need 2 washers to make up the 38 to 43 mm to get the correct geometry.

I'll be building my redneck bike table tomorrow and hope to get setup to finally pull the viffer shock. Can grade 8 bolts be had at the orange box store?

If this works out, I'll be offering up the other dogbone end pay-it-forward style...

Oh, and I'll have pix when I work it all out.

I dont know if it wil help, but since I put on the 929 shock, I have a spare 5th generation shoc that anybody is welcome to have for their 4th gen. (i dont know if the 5th gen is any better than the 4th gen)

I dont know if it wil help, but since I put on the 929 shock, I have a spare 5th generation shoc that anybody is welcome to have for their 4th gen. (i dont know if the 5th gen is any better than the 4th gen)

Hi, Can you mesure how long the stock 5th gen shock is?
I�m currius to know. I try to figur out to fit a 4th gen �hlins to my 5th gen, but dont want to take out the shock if any can mesure from one alredy out.
Thanks

I dont know if it wil help, but since I put on the 929 shock, I have a spare 5th generation shoc that anybody is welcome to have for their 4th gen. (i dont know if the 5th gen is any better than the 4th gen)

Hi, Can you mesure how long the stock 5th gen shock is?
I�m currius to know. I try to figur out to fit a 4th gen �hlins to my 5th gen, but dont want to take out the shock if any can mesure from one alredy out.
Thanks

My 5th gen shock is ~ 12 13/16" (325mm) eye-center to eye-center.

My 5th gen shock is ~ 12 13/16" (325mm) eye-center to eye-center.

What about the talk of an adapter that you could reuse your old mount? Something like this:

[image: Posted Image]

What about the talk of an adapter that you could reuse your old mount? Something like this:

[image: Posted Image]

I guess I missed that talk, the idea of making an adapter and still using the stock mount never crossed my mind. I haven't put much thought into it, but I don't think that an adapter would be feasible. That makes for another bolt that could come loose or fail. You have to track down another bolt, my mount completely replaces the stock one and reuses all of the original fasteners. I'm not fond of adding another piece, more chances for failure.

More than one way to skin a cat :fing02: As seen in this thread there have been several different methods shown that ended with the same results.

Zach571

What about the talk of an adapter that you could reuse your old mount? Something like this:

[image: Posted Image]

I guess I missed that talk, the idea of making an adapter and still using the stock mount never crossed my mind. I haven't put much thought into it, but I don't think that an adapter would be feasible. That makes for another bolt that could come loose or fail. You have to track down another bolt, my mount completely replaces the stock one and reuses all of the original fasteners. I'm not fond of adding another piece, more chances for failure.

More than one way to skin a cat :fing02: As seen in this thread there have been several different methods shown that ended with the same results.

Zach571

I like the look of your bracket and not grinding down the bolt head is a plus! Are you making more? http://www.vfrdiscus...tyle_emoticons/default/smile.gif

Ok got the shock in but coils a no go for stock placement. Anyone with a 4 gen have an idea what you did? Do the coils need to be grounded via the bracket? Thanks Brian

Ok got the shock in but coils a no go for stock placement. Anyone with a 4 gen have an idea what you did? Do the coils need to be grounded via the bracket? Thanks Brian

Coils? Are you talking about the shock spring?

What about the talk of an adapter that you could reuse your old mount? Something like this:

[image: Posted Image]

I guess I missed that talk, the idea of making an adapter and still using the stock mount never crossed my mind. I haven't put much thought into it, but I don't think that an adapter would be feasible. That makes for another bolt that could come loose or fail. You have to track down another bolt, my mount completely replaces the stock one and reuses all of the original fasteners. I'm not fond of adding another piece, more chances for failure.

More than one way to skin a cat :mellow: As seen in this thread there have been several different methods shown that ended with the same results.

Zach571

I like the look of your bracket and not grinding down the bolt head is a plus! Are you making more? http://www.vfrdiscus...tyle_emoticons/default/smile.gif

I can, I won't be stocking them on a shelf though. Made to order.

Zach571

Ok got the shock in but coils a no go for stock placement. Anyone with a 4 gen have an idea what you did? Do the coils need to be grounded via the bracket? Thanks Brian

Thanks too all that posted on how to:especially veefee800 canuck finally got the 954 in and its a big difference over the OE one.Well worth the time and effort.

Thanks,
Mike

Thanks for the compliments guys!!.

Rangemaster, the stock bracket I had in the AutoCAD drawing was from my measurements from the OEM part. I used that as a base drawing to build my other drawing. If I were to make that stock bracket for you, it would cost a lot more than the one from Honda. As of today, Carolina Cycle has it listed in their fiche for $10.03 (Honda calls it: BRACKET, RR. RUBBER : 50233-MZ7-000).

Cheers!

Thanks for the compliments guys!!.

Rangemaster, the stock bracket I had in the AutoCAD drawing was from my measurements from the OEM part. I used that as a base drawing to build my other drawing. If I were to make that stock bracket for you, it would cost a lot more than the one from Honda. As of today, Carolina Cycle has it listed in their fiche for $10.03 (Honda calls it: BRACKET, RR. RUBBER : 50233-MZ7-000).

Cheers!

Sorry, I was thinking your bracket to work with the 929 shock that would leave the bike at the stock height. (I'm a short guy).
You have set the standard.

The spring colour on the 929 shock does not matter, the one with the white spring is from the Erion edition 929 and is identical to the other one, save for the spring colour.

The 954 shock has the gold colored reservior like this one:

http://cgi.ebay.com/...p4506.m20.l1116

And it doesn't fit as well, see early in this thread for why.

Hello,

I'm in the middle of this modification too. I've got a couple questions.

Seems like there are 2 kinds of 5th gen people doing this mod, those with interference between the reservoir and those without. I'm one of those with:) If I rotate the top of the shock 90 degrees, to the reservoir points forward instead of to the right, I have plenty of space. Is the shock OK with this? Will it damage anything internal? It seems the spring tension makes this quite difficult, but force can trump good judgement. I know the spring doesn't care, it's the internal bits I'm concerned about.
No worries here, spin away!

One alternative to rotating the top of the shock is to trim the plastic that extends forward from the battery box. I'd rather not do that, it looks to provide some protection to some electrical parts. I think that's a very good thing and don't want to compromise that. I'm probably over thinking that, but, hey, it's my motorbike. Has anyone trimmed this piece without taking it off the bike? Any other problems stem from this?
I think no trimming is needed if you use a 929 shock, it's just tight!

I could also, maybe, add more spacers to my top mount setup. I'm using a stack of washers, 40mm for now. I see that some have gone as high as 45mm, that would probably clear the plastic. I do have space between the bottom of the shock and the dogbone. My concern is that at 40mm, I measure 19mm more ride height, assuming I measured right. If I add 5mm more to the shock, that's a lot more ride height. I measured from a flat on the axle nut to the bottom of the key slot on the helmet lock/seat release latch.

Also, about the bolt that holds it all in place. It seems it's there to hold things in place, and any force to it from suspension movement is pretty minor. If this is the case, there's no need to use a super strong bolt. If I could find one around here easily, I would, I haven't been able to find larger metric sizes locally. Should I make the effort to get a high strength bolt?
A grade 5 bolt should be plenty strong enough, Ace Hardware carries a good amount of metric bolts.

Last question....by using washers, the shock is not keyed at the top, nothing to resist preload adjustments. Any problems here?
Not really, I've never had a rotation issue!

Thanks a ton. Can't wait to get riding again, been off the road to long.

Scott

Also, about the bolt that holds it all in place. It seems it's there to hold things in place, and any force to it from suspension movement is pretty minor. If this is the case, there's no need to use a super strong bolt. If I could find one around here easily, I would, I haven't been able to find larger metric sizes locally. Should I make the effort to get a high strength bolt?

got this lil baby in the post and on the way to me from good old us of a...[image: Posted Image]
cbr 929/954 ohlins Was going for $640.. thats �350 which is cheaper than i was quoted for another far lesser aftermarket shock this morning! Is said to have 2500 mile on it.. so am really pleased.... �30 shipping as well

looking to fab up the bracket to fit said shock on my 4th gen model.. [image: Posted Image]
mullet mans fabed up block

am hoping to take this example right out of the thread......
am after standard vfr height as adjustment is avaliable on the shock.. with a 929 front end i may well need to get more length out of the front as its shorter than normal vfr, by adjusting the rear a touch on the shock...

Will i need to adjust the height from 36mm-38mm?
All input here very welcome..
just fitted the two bros system and wow its awsome.. wont be long before the fuzz will be on me case tho as its awesome loud!!!!!!

Last saturday I installed a 929 shock (yellow) on my 5th gen. Altough I used a 42mm spacer, the oil reservoir seems to be touching the battery compartment. It was really hard to get the old shock out and the 929 one in.
Anyone who can give me a basic setup for the 929 shock: preload - rebound - compression? My weight is 63kg (+- 139 lbs).

Honda manual sais...

For Honda cbr929rr- General information- Rear wheel/ suspension-

shock absorber -
Spring adjuster standard position - 4th groove
Tension adjuster initial setting- 2 turns from full hard
Compression adjuster initial setting- 1 turn from full hard

Place i would start at.
Im just sorting the 929 front forks on my VFR at the moment and ill also be using standard settings there.

Old thread, but do these 5th gen shock mods work on a 6th gen as well or is there is a different source of rear shocks for my 02 6th gen. Im looking for a cheap upgrade with more adjustability, i think the stock rear shocks are way too soft.

Can or has anyone tried using a CBR 1000 rear shock on a 6th gen? Looks like the reservior is angled up which maybe a problem.

Old thread, but do these 5th gen shock mods work on a 6th gen as well or is there is a different source of rear shocks for my 02 6th gen. Im looking for a cheap upgrade with more adjustability, i think the stock rear shocks are way too soft.

Check with Jamie, he's doing a nice 954 install.
http://www.vfrdiscus...showtopic=53309

I wonder if one of these can be modded and fitted into my 6th gen: a 2009 GSXR 1000 rear shock, i found someone selling brand new ones for $150 each.

The spring rate and rear suspension linkage ratio would tell you a lot about whether it's even in the ballpark or not.

The spring rate and rear suspension linkage ratio would tell you a lot about whether it's even in the ballpark or not.

. Should I try to fill the gap with jb weld or not worry about it since the spacer will be compressed? I'm worried about the spacer walking around. Thanks for any help, I can post pics tonight if need be.

So I installed the 929 shock tonight and I have battery tray interference. Has anyone who installed with battery tray interference had any ill effects with either the suspension acting weird or anything else?

I need a spanner as my tools were dropping out the back of my bike like some kind of bombing run this weekend. Almost took out 2 of the riders behind me. Let me know how much $$ for a good wrench. Also with the shock the other way are you able to get to the top adjustment?

Yep for my 929 shock. PM me with your payment needs, paypal etc.. Thanks Brian

I put my 929 shock into my 5th gen today. I used part of a 1/4" x 1 1/4" kart axle for the spacer, and made it 45mm longer than stock including the washer. Heavy and not as elegant as some of the other beautiful spacers people have made, but I'm way more overweight than the bike anyway. Plus I only spent $35 for the shock and 3/8 grade 8 hardware.

Due to the larger diameter spacer, I had to grind a little notch in the top of the spacer to clear the protruding angle in the frame rail. No clearance issues. I rode about 15 miles this am, starting with the preload on the 3th increment from max, with damping set in the middle on both comp. and rebound. So far seems like an improvement in ride quality and control compared to the old stock shock.

AndyJI put my 929 shock into my 5th gen today. I used part of a 1/4" x 1 1/4" kart axle for the spacer, and made it 45mm longer than stock including the washer. Heavy and not as elegant as some of the other beautiful spacers people have made, but I'm way more overweight than the bike anyway. Plus I only spent $35 for the shock and 3/8 grade 8 hardware.

Due to the larger diameter spacer, I had to grind a little notch in the top of the spacer to clear the protruding angle in the frame rail. No clearance issues. I rode about 15 miles this am, starting with the preload on the 3th increment from max, with damping set in the middle on both comp. and rebound. So far seems like an improvement in ride quality and control compared to the old stock shock.

Try and set up the shock by your sag measurements. If you are over 170 lbs you may need to get a heavier spring in her.

SLO97VFR

AndyJI put my 929 shock into my 5th gen today. I used part of a 1/4" x 1 1/4" kart axle for the spacer, and made it 45mm longer than stock including the washer. Heavy and not as elegant as some of the other beautiful spacers people have made, but I'm way more overweight than the bike anyway. Plus I only spent $35 for the shock and 3/8 grade 8 hardware.

Due to the larger diameter spacer, I had to grind a little notch in the top of the spacer to clear the protruding angle in the frame rail. No clearance issues. I rode about 15 miles this am, starting with the preload on the 3th increment from max, with damping set in the middle on both comp. and rebound. So far seems like an improvement in ride quality and control compared to the old stock shock.

Try and set up the shock by your sag measurements. If you are over 170 lbs you may need to get a heavier spring in her.

Yeah I'm hopefully going to get time to do some measurements later in the week and tweak as needed. I had to get it back together and then get to work supervising my son's science fair project. (I thought suspension upgrades would be a good topic, but got voted down by mom and teacher). I'm about 210 with gear and planning to send everything out to get more appropriate spring rates over the winter.

Hi there!

I have been reading this forum for a long time, but not it's my first reply... smile.gif

Please, sorry for my really bad english, but i need your help...

Tried to find someone, who did 929 shock mod with 3rd Gen?

Looks like I'll be the latest one to drag this topic out of the depths...

Did anyone decide that they would be willing to fab up one of the mounts that works with the 5th Gen/929 shock for the general public? :wheel: If so, what was the cost? I saw a few people in this thread that said they would make more of them, but I didn't see any followup.

ScottyDont

Looks like I'll be the latest one to drag this topic out of the depths...

Did anyone decide that they would be willing to fab up one of the mounts that works with the 5th Gen/929 shock for the general public? :wheel: If so, what was the cost? I saw a few people in this thread that said they would make more of them, but I didn't see any followup.

I've been doing that for almost a year now. The cost is $270 which includes the conversion to the 929 shock to make it fit the VFR plus a new spring (the 929 spring is too soft, by the way). This is a modification to the shock itself which makes it a bolt-on replacement for the stock unit, not a separate bracket. PM me if you would like more details!

I know I'm a little late to the party here but...

Just throwing my $.02 in. Made a spacer and shims so I could "quickly" check out the 929 shock. Thinking of a Daugherty Motorsports makeover if I come to really like it. Really like zach571's design and syjang40's solid billet mount too. First impressions: Much more taut. Much more stable in mid-turn bumps. Need to dial in the comp and rebound. I added a little ride height (10mm). I like the effects of that.

I think I spent as long trying to carefully trim the battery box around the reservoir as making the spacer.

btw if anyone can tell me how a 5th gen battery box could possibly not need trimming for this mod, I'd love to know.

Thanks to everyone (HS, BR, Veefer et.al) who figured this all out for me. (Still took me all day+.)

skymon

btw if anyone can tell me how a 5th gen battery box could possibly not need trimming for this mod, I'd love to know.

skymon

I added a little ride height (10mm).

You kinda answered your own question there. I added a little more than 10mm to mine ( I have to be sure it's on flat, level ground for the rear tire to spin on the center stand). The reservoir is pushing against the plastic below the fuse block, but it's been that way for 20K+ miles, and hasn't hurt anything. The bike holds a line much better on corner exits under throttle now too.

So just to confirm, if I wish to retain the bike's standard ride height, that spacer needs to be 38mm. Is that correct?

Yup. 38mm.

Didnt have a metric bit for aluminum, ended up with a nice spacer, but not a tight fit around the metric 10.9 grade bolt.

Should this be ok?

Something tells me, not ideal, could introduce movement or slop in the connection. Another argument is that the forces are up and down, once bolted in snug, there should be no torquing laterally. That doesnt seem right either though.

Or does an imperial bolt (sorry the sizes escape me) pass through the frame ok, in which case I would use it....

Sorry for dragging up an old thread, but this was 1 of the winter projects.

Last night I got the 929 shock installed, using a 39mm aluminum spacer. The shocks reservoir is facing backwards, away from the head & exhaust, under the plastic tray that is the battery box, but also holds the wiring harness loom.

When bolting up the shock, I did notice the reservoir pushing up against this plastic lip that shields the harness. I dont think its too much of an issue. Is there much movement of the shock & reservoir itself?

Another thing I noticed, the lower adjustment screw on the 929 shock sticks out a little long, and is coming awfully close to the 3 point triangular linkage where I fear contact. Has anyone had this issue?

Can post pics if it helps. Any input appreciated.

kc5555

Sorry for dragging up an old thread, but this was 1 of the winter projects.

Last night I got the 929 shock installed, using a 39mm aluminum spacer. The shocks reservoir is facing backwards, away from the head & exhaust, under the plastic tray that is the battery box, but also holds the wiring harness loom.

When bolting up the shock, I did notice the reservoir pushing up against this plastic lip that shields the harness. I dont think its too much of an issue. Is there much movement of the shock & reservoir itself?

Another thing I noticed, the lower adjustment screw on the 929 shock sticks out a little long, and is coming awfully close to the 3 point triangular linkage where I fear contact. Has anyone had this issue?

Can post pics if it helps. Any input appreciated.

Mine was that way for a couple years, and I had no issues.

quick update....been out for a few km with the 929 shock & new tires so tough to say which has made the improvement, but over rough surfaces and potholes the bike feels alot more planted where before it would get a tad loose in the back end. Not sure what to attribute that to really, assuming the shock is planting the rear end better than before.

So far money/time well spent I think though.

great thread everybody. I am a new forum member with a 5th gen and I am going to do the 929 shock swap. If anybody has an extra 929 shock, let me know, thanks!

Stupidhurts

great thread everybody. I am a new forum member with a 5th gen and I am going to do the 929 shock swap. If anybody has an extra 929 shock, let me know, thanks!

I keep plenty of them in stock, not a problem!

OH, OLD THREAD ARISE!!!

I guessed I may have missed it, but does a Grade 5 bolt work for this mod? That's all I seem to fond in M10

daqangel

OH, OLD THREAD ARISE!!!

I guessed I may have missed it, but does a Grade 5 bolt work for this mod? That's all I seem to fond in M10

Putting my engineer hat on, Grade 5 in such a critical spot is probly not a good idea.

You can substitute a 3/8 as it's real close to M10. Grade 5 would probably be fine though as it's not a high shock load fastener, and most of the force is upward which doesn't put the bolt under lots of tension. That is unless you frequently un-weight the rear.......

Thanks guys. I will just ditch the Grade 5 (Class 8.8) altogether.

MBrane, yes, I will go with 3/8. 'preciate it.

I do not suggest using an extended upper mount to make up that much distance. You would be running a serious risk of failure. All of the 929 shocks that I build are converted so they fit without any changes to the upper mount - FYI

Yup, dragging up an old thread, but I want to update the best motorcycle ever built, so why not.

My 01 is showing some signs of its age and want to do some modest updates, can you blame me, no.

*I am hoping that someone may have taken the time to build a nice spacer unit to make up the difference on the 929 shock and have an extra to sell.

If not there is enough info here to build my own.

The front end is easy, I plan on taking it to a local suspension shop http://www.rmrsuspensions.com/ and let Rod do his magic on his recommendations.

Message sent to Jamie Daugherty

That sounds like a great place to start JamieDaugherty. Should I pm you? I am new to the forum and the rules. Thanks

Stupidhurts

That sounds like a great place to start JamieDaugherty. Should I pm you? I am new to the forum and the rules. Thanks

Cheers!

Thanks Duc2V4, will do

I have one of Jamie's CBR929 shocks. I think he uses an off the shelf Hyperco spring of a suitable diameter and rate, plus a custom aluminium spacer to get the length right.

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