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Dutchy will be around soon to report on how little Puma rides on its YSS shock.

The (Dutch) suspension specialist who custom built it for him thought they were worth his time and reputation. 

5 hours ago, Saoirse

I have decided it's time to fit a new shock, the bike is starting to wallow and bounce on any rough surface, I am no road racer but even I can't live with this saggy arsed suspension anymore,

best price I can see is on the Yss shock number MZ506-325TRL-06      costing around 290 euros delivered, I might 'spring' for a set of fork springs as well and change the fork oil.

anyone used this shock and any opinions on quality etc? thanks

you can check this:

But you can also consider this too:

http://www.ebay.co.uk/itm/222157487336?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

+1 on what rc36rider said.

If SO-Products' Andre endorses them then that is good enough for me. He is a well respected suspension guy. He also sells, installs, tunes the liked of Ohlins, Hyperpro, Wilbers, what the customer wants/decides.

Having owned a Wilbers, for me the build quality is on par.

20 minutes ago, Saoirse

Reading reviews on the Hyperpro shock, some are saying it's not good because it's an 'emulsion' type shock, is the oem shock the same type?

I wonder how many of these reviews are based on actual experience or technical understanding. I'd wager not many.

Quote from Race Tech:

Emulsion shocks can actually work quite well but are not considered to be a high-performance design.

Basic WP shocks are (were ?) also emulsion. I doubt that they'd bother if it was such an awfully inferior design. 

I've seen very positive reviews of the Hyperpro Street Box, admittedly coming from regular road riders comparing it with their spent OEM.

Not 100% sure but I believe the stock shock is not emulsion. Doesn't mean it's a high performance item, though.  :goofy:

1 hour ago, Saoirse

the more I read the more confused I get.

I know the feeling.  :laugh:

Some more info from Penske:

What is an Emulsion Shock:  An emulsion shock is a gas-charged shock that does not have a separator piston between the gas and oil, allowing them to mix together.  An emulsion shock must be fitted so that the nitrogen cavity is at the top of the shock. 

Can I Upgrade the 8900E to a Canister Shock:  The 8900E utilizes the same piston and shims found in other Penske Racing Shocks, allowing it to very easily be converted to a canister shock when you're looking for more adjustability range.

1. If Penske offer emulsion shocks, that trumps the opinion of any number of forum "experts" as far as I'm concerned. 

2. I see no reason why the Hyperpro would not be upgradeable if the Penske is hence no major waste of money should you decide later that you want a fully adjustable model. 

From my own experience totally rebuilding my front end with many trials and errors, 20w is way too heavy and will have very harsh slow speed damping. 

But if all you're doing is the front spring without any valving work, it will be very hard to get it to feel good. 

Are you positive they spec 20W ? That's reaally heavy for cartridge forks.  :unsure:

I found some info on a CBR XX forum (same MY and HMAS valving) and they got 7.5W with their Hyperpro springs.

Both Öhlins and Wilbers spec 5W with their fork springs.

Stock is 10W for the 5G.

I agree with RC and Oz. 7.5W is as high as one should go with those HMAS valve bodies; 20W will be very harsh IMO.

Strange.  Upping the fork oil weight is such an '80s kind of tuning approach.  You can try it, of course, but "contemporary wisdom" suggests that 20wt will be very harsh over bumps.

Ciao,

There is only so much you can do without a complete revalve.

Remember that HMAS stands for Harsh and Mushy At the Same time.  :goofy:

The best you can hope for is to get rid of one. Take your pick. 

IMHO, 20W might indeed be fine for sports riding on fairly smooth stuff but I can't imagine anything other than a very rough ride on anything that's a bit of a "washboard" (by which I mean small but sharp bumps in rapid succession). 

Anyway. Best of luck with the Hyperpro. :fing02:

Do let us know how you're faring. :wheel:

16 minutes ago, Saoirse

Christmas present to myself!!

:fing02:

Beats a pair of socks.  :goofy: :laugh:

RC36Rider, 10/21/2016 at 10:06 AM

Remember that HMAS stands for Harsh and Mushy At the Same time.  :goofy:

So that's what it stands for! Nice one, RC

1 hour ago, Saoirse

Is replacing the shock an easy enough job or should I bring it to a bike shop to have done? any tips/advice appreciated, thanks.

Nothing too bad on the 5G, I believe. 

See the Öhlins Mounting Instructions attached for a bit of guidance.

Shock-MI_HO801-RC46.pdf

The 5G is pretty easy to work on, I had to work the swingarm up and down while inserting the new shock but otherwise it was easy enough. I took the wheel off to do this, which gives a nice big range of motion for the swingarm.

:worthlesswithoutpics:

Anything to please you, Dutchy.

Here's a Hyperpro spring in gorgeous purple.  :goofy:

[image: WISPAP10.jpg]

(Barf !)

19 hours ago, Terry

So that's what it stands for! Nice one, RC

Thanks. :laugh:

It's none too clever really but does express my frustration with this HMAS mystery. Why, oh why Honda ?  :huh:

So the next question is, is the YSS better then getting a rebuild of the stock unit, maybe even with new valves?  A respring and revalve from DMr is $295.00. If you really want to get the party started its $420.00 for a fully built 929 shock (fully adjustable)..

9 hours ago, Epyon007

So the next question is, is the YSS better then getting a rebuild of the stock unit, maybe even with new valves?

Probably not but the issue for us on the wrong side of the pond is that shipping and EU taxes raise DMr's prices quite substantially.  :mellow:

If you have to ship your OEM to the US first, it will likely cost more than a decent aftermarket item. 

Someone over there has to be able to use Racetech stuff, though it may be a tad more money, to do the same thing.