Review on All Balls 18 1069 Cylinder Rebuild by Mario Beckwith

I've had 50/50 luck with All Balls racing products. Sometimes they work and fit well, and sometimes the parts don't fit at all. This was a GSXR 750 front master cylinder rebuild kit. The nice thing is that you get almost all new replacement parts. However, 99% of users do not need new snap rings or a new spring, just the right size piston lip rings or O-rings. The piston rings for this kit are undersized and will allow fluid to flow through the bore and ring meaning your brakes will not work and you will spend hours bleeding the system only to find you had a leak the whole time . . waste of time and money. Just buy an OEM piston cup kit and you're done. In my case I was lucky that the old piston rings were in good condition and could be reused.