FZRSupport: the FZROnline Archive

Hi, can I use a thundercat front master cylinder with my oem brakes and how do you mount the reservoir. I have done a search but could not find an answer.1990 FZR 600 four pot brakes.

Yes, you can. It's definitely an upgrade from the standard master. An even better upgrade would be a 16mm radial master (can be found on later R6's). Mounting? There's a numerous creative ways to do it but I like this way:

Thanks for your reply, basically I need to replace my master cylinder and can get yzf one cheaper and Ilike the reservoir design better for filling ( ex rd owner!). Bike on a rolling restoration as and when I get work at the moment so budget is tight. Bob.

Have managed to fit thundercat master cylinder while retaining mirror stay by using a lower profile reservoir and bracket mounted from top yoke by using the screw threads at the end of the top fork clamp. Used a bit of threaded rod and made a spacer to slide over part way to get clearance for locknut. You could use t/cat reservoir but I have a better view of the temp gauge and warning lights with the shorter res.

rabbit57 wrote:Have managed to fit thundercat master cylinder while retaining mirror stay by using a lower profile reservoir and bracket mounted from top yoke by using the screw threads at the end of the top fork clamp. Used a bit of threaded rod and made a spacer to slide over part way to get clearance for locknut. You could use t/cat reservoir but I have a better view of the temp gauge and warning lights with the shorter res.