www.zxrworld.co.uk

Sorry,
I checked the FAQ first, but I couldn't find an answer.

The GSX-R Tokico 4pots can not be fitted plug and play as they use much smaller bolts than the original Kawasaki calipers do.

Are there bolts that fit these calipers tot the ZXR fork plug and play or do I need to have some spacers made up to make the original Kawasaki ones fit?

I'd prefer not to use spacers as they might get me in trouble with the TUV over here.

Thanks very much,

Charles

widen the holes in the caliper ! 1mm more radius is not critical

or gimme a PN

greetz
zaphod

or use helicoils in the fork's screwholes

Zaphod wrote:or use helicoils in the fork's screwholes

I don't think that would help at all

sleeves need to be fitted, you can pick these up on ebay.

Alternative could be to use a bolt with the correct thread but a thicker shaft to remove the need for the sleeve.

I have gsxr calipers fitted to my bike, first of all with the original gsxr bolts using the spacers mentioned earlier, which I found doing a simple search on eBay. Then afterwards when I managed to screw up the threads in the calipers because I used thread locker and when I later tried to remove the calipers I screwed the threads up. If you do it this way I would recommend not using thread locker on the bolts!

So in the end I had to drill and tap the calipers to accept the larger 10mm zxr bolt, which I think has worked out better in the end.

If you do decide to drill and tap the threads don't buy a cheapo set of taps from eBay as they are shite and will not work. You need an M10x1.25 tap to match the thread of the larger zxr bolt thread.

Just to add at after I had my gsxr calipers fitted and working, I found that the size of the master cylinder bore wasn't well matched to the size of the Pistons in the caliper and as a result of this the braking power was very strong but there was a great deal of travel at the brake lever. So to solve this problem I also fitted a gsxr master cylinder and now the brakes are excellent.

i will convert my calipers into sc50 ones incl master cylinder...same issue..

8mm screwholes in the caliper..
we will widen them to 10mm and use cnc spacers (aproxx <2mm, friend of mine will make them) to match the disks middle with the caliper
1hr work ( check clearance inside the calipers/disks...mines are fine at >1mm gap between outer ring of the disks and the caliper)

cheerio
zaphod

Thanks everyone! I adapted the GSX-R calipers to take the Kawasaki bolts.
I now fitted them and together with new stainless hoses they work a treat.
Got now quite some travel of the brake lever, so in time I will fit a GSX-R one as well,
but it is still a huge improvement over the old calipers (each with 2 stuck pistons) and the old rubber hoses.


Charles