Shimano RT-MT905 6-Bolt Disc Brake Rotor

A 203mm 6-bolt Ice Tech FREEZA disc brake rotor for XTR-tier mountain builds, the Shimano XTR RT-MT905 Disc Brake Rotor (203mm, 6-bolt) uses Shimano's Ice Tech FREEZA construction with sandwich blade design that rapidly dissipates heat for consistent braking performance. The 203mm rotor weighs 187g and runs roughly 100 degrees Celsius cooler than a 220mm stainless rotor under extreme conditions. Compatible with metal and resin pads. Sitting at the XTR M9100 tier of Shimano's MTB rotor hierarchy, the RT-MT905 in 203mm 6-bolt is the right pick for enduro and downhill builds running 6-bolt hubs where rotor heat management matters most.