Gsxr600k1 usd conversion.

[R6_kid:Me]

If you do decide to change it to something more modern, don't forget that Ebay is your friend.

[GSVR]

Fair point, but the only main wear items in both fork designs are the seals, upper and lower bushings, top cartridge bushings and the rebound bands. If the main tubes are pitted then obviously the cost gets out of control

As for better engineering no, better function yes and no. USD forks bind more when deflected, the later model forks have a bending shim stack midvalve so there is more instant damping control, but the base components inside the cartridges are still much the same with much the same issues as back in 2001. And with the K6 / 7 / 8 a major deficiency in high speed rebound that needs addressing with reshimming.

Swings and roundabouts, but the only trouble with a USD conversion is all the other costly bits that go with it and adaptation hassles, often.

Not so much the original forks I was refering to here but the rest of the bike ie engine,bodywork etc. Some classic racers have better fork internals than alot of modern bikes aye.

[DEATH_INC.]

Swings and roundabouts, but the only trouble with a USD conversion is all the other costly bits that go with it and adaptation hassles, often.

Nope, on the gixxers ya just get a complete front end, triples forks wheel etc and they fit right in....
As for the rest, I still stand by what I believe to be the main advantages, braking + weight, a little can be a lot with these things...

[Robert Taylor]

Nope, on the gixxers ya just get a complete front end, triples forks wheel etc and they fit right in....
As for the rest, I still stand by what I believe to be the main advantages, braking + weight, a little can be a lot with these things...

And the all up cost of all those parts is? Its in the end event an exercise in how much bang for buck.

[DEATH_INC.]

And the all up cost of all those parts is? Its in the end event an exercise in how much bang for buck.

S/h, cheaper than an ak20 or similar kit....

[Robert Taylor]

S/h, cheaper than an ak20 or similar kit....

I wasnt so much eluding to complete cartridge replacement which inarguably is a dollar exercise. AK20s are also now not even on the radar screen because there is much better stuff on the market.
With the GSXR600/750 forks very decent improvement can be effected at affordable cost by simply revalving the stock pistons, and this also applies to the most recent models that have a serious rebound damping deficiency.
A step further is to fit replacement aftermarket pistons in the stock cartridges.
Fitting later model front ends does not cure suspension issues, because all mass produced units have shortcomings despite all the pr and media hype.

[dipshit]

With the GSXR600/750 forks...
...A step further is to fit replacement aftermarket pistons in the stock cartridges.

Question. Shortly i will have the shock out on my k8 GSXR600 to have a 8.5kg spring fitted in place of the 9.4kg standard one. (I am 77kg)

Is there any other modifications that would be worthwhile doing when the shock is out... or just do the spring first by itself and see how it goes?

[Robert Taylor]

Question. Shortly i will have the shock out on my k8 GSXR600 to have a 8.5kg spring fitted in place of the 9.4kg standard one. (I am 77kg)

Is there any other modifications that would be worthwhile doing when the shock is out... or just do the spring first by itself and see how it goes?

Are you also using it for occassional track days? If so yes, we can revalve it.

BTW our front fork mod makes a HUGE difference, Shaun Harris delivered a set to a guy in Aucklalnd today and he was stunned with the difference.

[dipshit]

Are you also using it for occassional track days? If so yes, we can revalve it.

BTW our front fork mod makes a HUGE difference, Shaun Harris delivered a set to a guy in Aucklalnd today and he was stunned with the difference.

Yeah it will probably see the occasional track day. I will keep that in mind.
Forks are on the list to do after the shock.

Blair Selfe in Oamaru will be doing the work.

Thanks for the tips.

[Sidewinder]

just get a new bike if it bothers you that much dude

[Wingnut]

Blair Selfe in Oamaru will be doing the work.

Brave man you are - Brave indeed.....

[dipshit]

Brave man you are - Brave indeed.....

. . . .

[carver]

I wasnt so much eluding to complete cartridge replacement which inarguably is a dollar exercise. AK20s are also now not even on the radar screen because there is much better stuff on the market.
With the GSXR600/750 forks very decent improvement can be effected at affordable cost by simply revalving the stock pistons, and this also applies to the most recent models that have a serious rebound damping deficiency.
A step further is to fit replacement aftermarket pistons in the stock cartridges.
Fitting later model front ends does not cure suspension issues, because all mass produced units have shortcomings despite all the pr and media hype.

i found the best bang for buck was the screwdriver i got for adjusting them.

[Robert Taylor]

i found the best bang for buck was the screwdriver i got for adjusting them.

All the way to cavitation as often happens.

[Robert Taylor]

Yeah it will probably see the occasional track day. I will keep that in mind.
Forks are on the list to do after the shock.

Blair Selfe in Oamaru will be doing the work.

Thanks for the tips.

Blair is very very good, with respect to the forks we keep the spec to ourselves because we spent dyno and track time developing it, its not something we ''give away''.