CBR600F front end into GPZ500S?

[St0rmer66]

Someone mentioned this to me once but I've never managed to find any info on it. Anyone any ideas which model exactly it is? Any issues with it?

My guess is something like an F1 or F2 at most since the GPZ design hasn't changed much really apart from 1994 (which is still 13yrs ago!).
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:: Honda XR 125 L ('53) => Kawasaki GPZ 500S ('02) => Suzuki SV650S ('00) => Aprilia RSV-R ('51) ::

[MarJay]

[tsmith]

Have a look here
https://mfes.com/wade/F2front.html

[St0rmer66]

[NSR Mick]

Polish? Turd?

Just buy a better bike. I dont really understand performance upgrades to a budget commuter. The CBR600F hardly set the world on fire either.

Just ride it as it is as I'm pretty sure you wouldnt notice any difference and if you did it would be worse.
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If you dont like the way that I ride.......Stop trying to keep up!!!

[St0rmer66]

Thanks for the link tomsmith.

After reading it I don't think it's a good idea for me to bother getting it done. I have no way of making the spacers or sleeve and no way to bore out the fork clamps. Which means to get it all done professionally would defeat the object of doing it on the cheap.

The brakes on this are just so terrible. Single front disc with 2pot callipers. Braided lines increased my control of them, but ultimately they are no better.

As mentioned gsxrmick, no point me getting a better bike whilst on my restriction as being a twin my bike is probably best at the job and is already restricted etc.
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:: Honda XR 125 L ('53) => Kawasaki GPZ 500S ('02) => Suzuki SV650S ('00) => Aprilia RSV-R ('51) ::

[Kickstart]

[Kickstart]

[NSR Mick]

[tsmith]

progressive fork springs and thicker oil will firm up the front.
hagon replacement shock will sort out the rear.
https://www.hagon-shocks.co.uk

the brakes are usually ok if you get them stripped and cleaned (mine were binding). I fitted braided hoses and sintered pads as well and they were ace after that.

If you want twin discs, see if you can find the front end of an EX500 E9 or E10 (2002 or 2003 models)

[St0rmer66]

A twin disc front would be great and I was aware of it, but never had anything come up when I have looked. What parts would I need to change mine? Wheel, callipers and ... ? Thinking about it, I guess I would need the forks too.. damn.

Kickstart, interesting you should say it's not good for restriction. I didn't really know! But the only bike I've compared my GPZ to was a CBR400 which it was better than by quite a stretch engine wise, just lacking in most other areas! What would you say would make a good bike for restriction? It wouldn't take much to tempt me to upgrade when it comes to insurance renewal.

tomsmith, you clearly know a lot about these bikes . Very good info so have some . Not sure if a Hagon shock would be throwing too much money at it though, it only cost me £1500 in the first place! But sintered pads would be easy enough, any suggestions on which?
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:: Honda XR 125 L ('53) => Kawasaki GPZ 500S ('02) => Suzuki SV650S ('00) => Aprilia RSV-R ('51) ::

[Kickstart]

[stinkwheel]

Try HH sintered pads in it.

Another vote for progressive fork springs and replacing the fork oil (which I bet hasn't been done for a long time because it is a fiddle) to improve the front end handling.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[tsmith]

I think I went with EBC HH sintered ones.

A cheap way to firm up the front is to cut a little off the springs and fit plastic spacers. Never tried it myself, but lots of info here:

https://www.ex-500.com/index.php/topic,134.0.html