my modded 97 vfr

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I like it!!!!!


I have a spare set of cracked rear panels, so how did you make the cuts/ with which tools?

The only cuts i made are the top front fairing because the handlebar switch gear got in the way and that was made with an angle grinder with a 115mm sanding disc very easy to do.

i took out the lower mounting bolts to the rear subframe and loosend the top bolts then i pivoted the subframe up to get the height i wanted then i made a set of angle brackets and bolted them to the bottom of the subframe after i did this the seat side panels would not line up with the line of the tank so i made another set of brackets and lifted the rear of the tank to keep everything in line the reason i jacked up the rear subframe was i did'nt want to alter the geometry of the bike some people just buy the rear shock linkage jackup plates but i feal this is a better way the only problem i have for now is the fireblade lockstops are in the wrong position so the handle bars hit the tank on full lock i need to sort this also i changed the throttle cable to a cb1000 big one as the vfr is to short the handle bars are a spare set of 1987 hrc superbike ones from my 6x vfr it has a cbr929 rear shock that realy needs revalving to suit the vfr the chainguard is from ebay a shop in germany sells them for around 70 dollas.

Very subtle, but now it looks the way it always should have looked! Nice work.

Just took it out for a ride and found that the fireblade front end has upset the handling of the bike i have tried adjusting the preload on the forks but nothing also tried the compression and rebound settings no better i think maybe the fireblade forks have a harder springrate does anyone know this for sure???.
The 4 pot nissins are a massive improvement over the standard setup.
mmmmm is the 96 fireblade yoke offset different to the vfr offset?

How has the handling been upset?

The front is too stiff? bouncy?

The suspension is ok but now it does not want to turn in on corners it understeers berfore with the oe forks and triple clamps it was neutral i even lowered the front by 10mm to make it steer quicker.

The suspension is ok but now it does not want to turn in on corners it understeers berfore with the oe forks it was neutral i even lowered the front by 10mm to make it steer quicker.

That's because you have increased the trail quite a bit with the 900RR triple clamps. If they're the late fireblade triples(98/99) they should have a 30mm offset, I believe the earlier ones had around 35mm, both shorter than the VFR clamps which I believe are around 40mm.

The only way you can get your trail back to(or close to) VFR spec would be to decrease the rake angle. Lowering the front of the bike will do this to a certain degree, but you start running into clearance issues if you go that way. I would recommend raising the rear of the bike instead, either by installing a longer shock(or sticking a spacer under the upper mount) a shorter shock linkage dogbone, or flipping your eccentric hub so that it raises the rear axle in relation to the swingarm.

I would try getting your rake in the same ballpark as a stock fireblade(whichever year the triples came from) and go from there.

These are just suggestions, modify your bike at your own risk of course! ;)

Not really digging the slightly raised tank and tail fairing.......Yes, the tail's higher and the gap between the rear fender and tire is increased, but that resulting wedge of space between the frame spar, tank and rear faring looks kinda........weird/not right.
Frankly, you might be better off shimming your rear shock up to the max to get some tail height as it seems like you might have to do it to get more trail back into the front geometry as mentioned by "kostritzer" anyway....
JMOs

Beck
95 VFR

Thanks very much for the info kostritzer first i will lower the front to see what happens i was going in the wrong direction as i raised the front trying to cure this.

No problem. See if you can find an angle finder like this one http://roofgenius.com/roofangle.htm locally. Set it flat on your top triple clamp to find out what your rake degree is currently. If you know what your rake and triple clamp offsets are, you can calculate your trail.

Just took it out for a ride and found that the fireblade front end has upset the handling of the bike i have tried adjusting the preload on the forks but nothing also tried the compression and rebound settings no better i think maybe the fireblade forks have a harder springrate does anyone know this for sure???.
The 4 pot nissins are a massive improvement over the standard setup.
mmmmm is the 96 fireblade yoke offset different to the vfr offset?

The rate is most likely too soft for you, not the other way around. Judging only by looking at the pictures of your bike I would say that you have too much rear ride height and not enough front. Basically you went too far. That has created a very unstable front end. My suggestion is to measure your stock parts and set your geometry close to that as a baseline. I think you find anything more than -10mm front OR +20mm rear is too much. If you do a combination of both you have something less on each end. Once you get the geometry set you can then work on getting the correct springs and valving in there to make the whole package work well.

Very Nice

hi

do you know what brand rear sprocket you have??