swapping for better performance?

[dans92fzr600r]

I have a 1992 fzr600r. Say I wanted to swap out the forks for inverted, and the swingarm for wider wheelbase and a smoother setdown from wheelies. What bike should I be looking into for these swaps? Also where can I get a cheap windscreen or used lower fairings? Also if its at all possible, could I get rims with more than just the 3 wave spokes?

[AussieFZR]

I'm doing this swap at the moment on my 89 fzr. I used 08 r6 forks, swingarm and rims. The forks swap was rather easy but I think an r1 set might be better as the r6 forks are a bit shorter than stock fzr forks.
The swingarm will take a bit more work as the frame needs cutting and welding.
A lot of guys have used the yzf braced swingarm which will give u a 160 Rear. I've heard of some guys using a f3 600 Rear rim which is 5 spoke I think.
Good luck with yr project.

[Bike_junkie]

You can use a yzf600r swingarm with a little trimming on the arms pivot. You can fit a 180 tie on it, but a 170 fits better.

[reelrazor]

I have a 1992 fzr600r. Say I wanted to swap out the forks for inverted, and the swingarm for wider wheelbase and a smoother setdown from wheelies. What bike should I be looking into for these swaps? Also where can I get a cheap windscreen or used lower fairings? Also if its at all possible, could I get rims with more than just the 3 wave spokes?

I am just completely baffled.

That's all

[dans92fzr600r]

Pretty much I want a bit more stability all around. And thanks forthe advise guys! I appreciate it.

[reelrazor]

well, there's really no such thing as a "wider" wheelbase.

Longer?

Hella wrong bike if you want a dragger.

Then, the longer they get, the less they LIKE to wheelie. That can be made up for with excessive horsepower,. but the FZR is not the best candidate for that either.
Smooth setdowns from wheelies ONLY comes from experience and skill-being comfortable with the front wheel up.

You want smooth setdowns? Practice.

Part of the FZR's appeal is that it is very nimble, neutral yet stable.

Start changing wheelbase and supersizing tires and that all goes away.

[dans92fzr600r]

Good point. But it never hurts to reinforce suspension right?

[RoadDogma]

I think what reelrazor is trying to say is that FZRs were built for corners, and swapping suspension components can significantly alter chasis geometry. The type of modification you propose (longer swingarm) will not only hamper the bike's performance in the turns, but will make it harder to wheelie... so yes, modifying the suspension can hurt (depending on your goals). A longer swingarm can increae stability, but it is kind of a "big hammer" approach.

You can vastly improve the rear suspension by changing the shock, alone. That, and some properly rated springs with cartridge emulators up-front will go a long way towards improving your suspension with-out impacting geometry. Further improvements are possible by swapping the forks, but they can also have negative consequences, and that depends on what you are trying to acheive. Pay attention to spring rate. You also need to understand how changes to front-end geometry will impact the bikes handling charicteristics. Understand that decreases in fork-offset and increases in fork length will increase "trail", which can improve front-end stability at the expence of turn-in quickness/effort.

I think you should define your goals, and approach modifications with a clear understanding of their relationship to potential performance impact. You state your desire for "a bit more stability all around", but what does that actually mean? What specific conditions are you wanting to address? Head-shake under hard accelleration? Does the rear-end move around while leaned over? Does the front-end feel nervous/vague in the turns? Does it chatter? Is it mainly a striaght-line, high-speed thing?

I've had 5 different fork set-ups on 2 FZR400s (1WG). I can tell you that my preference has been '08 R6 forks in tripple clamps that retain the original FZR fork off-set. That doesn't mean that would work for you, as we may have different priorities.

[dans92fzr600r]

Well I understand I was extremely vague and used wrong terminology. I guess what im actually looking into is a wider swingarm so that I can use different rims and also have a wider tire option. And the fork options seem endless. I suppose the forks on the bike could need a little refreshing. But im still swaying towards the wider swingarm. And I had no intentions of stretching the bike in length. Its the tire width that gets me. It breaks loose pretty easily with new tires. So I want to try a little wider, but the swingarm prevents that. I have very little space to add any more width.

[RoadDogma]

One thing to keep in mind when swapping to wider swingarms is that they can also be longer...

I run a 160/60-17, but I've never heard of an FZR600 running out of rear traction due to tire size with a 150. (I'm betting that Reelrazor makes significantly more power than pretty much everyone here, and he retains his stock swinger). Rear traction issues can be attributed to rear suspension problems. (Stiff spring, excessive rear height, etc). Is there any binding issues in the rear suspenssion?

I guess a larger rear tire would yeild more available traction, but I wouldn't want the compromises involved with running something larger than 160. That's just me. As for potential doner swingarms I would look at FZR1000 and YZF750 as they are aluminum and relatively short. If you're feeling lucky you could try to score one from an FZR400RR (3TJ). That's what I did.

So are ya feelin' lucky...?

[dans92fzr600r]

Well ill look into refreshing all of my suspension components before I actually do any modifications. I just like to bounce these ideas around and see what everyone has to say. So far it has worked great. Everyone seems to have information thats equally as valuable as the next.