The Shimano SM-RT66 disc brake rotor gives excellent performance using the 6-bolt international standard mounting system. These brake discs are ideally suited to Shimano Zee and SLX disc brake systems when using 6-bolt, non-centre-lock hubs. They have a precision cut and drilled stainless steel braking surface which improves pad clearing in muddy conditions while aiding cooling under high load, increasing pad performance and life.
Best Price: £18.40 from Tweeks Cycles