1989 gsxr 750 clutch conversion
Discussion
Strange feeling of deja-vu.
I guess the OP didn't like the similar answers he got last time he asked this question...
Yes it's possible, but possible in the same way that John Britten made his own race-winning bike; you will need plenty of time, plenty of patience, and access to some fairly serious engineering kit.
Mr Suzuki made it that way because that's what Mr Suzuki knew would work.
I guess the OP didn't like the similar answers he got last time he asked this question...
Yes it's possible, but possible in the same way that John Britten made his own race-winning bike; you will need plenty of time, plenty of patience, and access to some fairly serious engineering kit.
Mr Suzuki made it that way because that's what Mr Suzuki knew would work.
Whilst I agree with the above, try to sort existing lever/cable/routing and not forgetting cleaning & greasing up the lifting mechanism which lives by the gearbox sprocket (probably crudded up with chain lube).
The other point is that the GSXR1100s of the Slingshot era had hydraulic clutches. I'd be inclined to find someone with a spare sprocket cover with clutch lifting mechanism and see if that fits the 750 cases. The hydraulic bit is only between the gearbox sprocket cover & the lever - but the rod through the box may or may not be different. Possibly RF900 cover too.
The other point is that the GSXR1100s of the Slingshot era had hydraulic clutches. I'd be inclined to find someone with a spare sprocket cover with clutch lifting mechanism and see if that fits the 750 cases. The hydraulic bit is only between the gearbox sprocket cover & the lever - but the rod through the box may or may not be different. Possibly RF900 cover too.
Wyvern971 said:
trickywoo said:
The heaviest bike clutch I've had was hydraulic.
That's weird, the clutch on the VTR is hydraulic and is very light....trickywoo said:
Perhaps my phrasing was lazy. I was just making the point that having a hydraulic system doesn't necessarily make the leaver any lighter than a cable system.
A well designed hydraulic system will have less friction than a cable system, so it should always be lighter all else being equal. I converted my Tornado to hydraulic because the original cable system was stupidly heavy, and my DIY conversion gives a much lighter lever. Another minor benefit is that a directly operated hydraulic system is completely self adjusting.Magura (manufacturers of high end mountain bike braking systems) make a simple hydraulic conversion system for motorcycle clutch actuation. A UK distributor of these is Venhill.
Very easy to fit, but the disadvantages are:
1) Not cheap (£250-£300)
2) Uses the existing mechanical linkage which can be major source of friction, and may still require adjustment.
3) Will the clutch lever match the OEM brake lever? Also a pain if you drop the bike and snap the lever - no going to your local dealer for a replacement.
For the above reasons I made mine from OEM parts - a CBR1000RR master cylinder with integrated reservoir and an Aprilia RSV clutch slave (as I happened to have an almost new one). I later upgraded to an aftermarket RSV clutch slave which gave a lighter action and hopefully longer lasting seals.
Edited by Mr2Mike on Friday 16th October 12:41
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