Superior optics with Ultra HD lenses made from crack and chemical resistant material

arch-supported side knobs provide ample braking and cornering grip

Apply to chain

even when performing trail side repairs

TRP R1 6 Bolt Disc Rotor - 6 Bolt - 203mm - 2.3mm Thick Images Uploaded - Ready for Review Superior optics with Ultra HDTRP's thick 2. 3mm disc rotors are designed specifically for use with TRP TRP Trail EVO, DH R EVO and E MTB brakes only. The thicker rotors offer better heat dissipation and lateral stiffness than standard 1. 8mm thick rotors and are the new rotor of choice for TRP's sponsored riders on the DH World Cup circuit such as Aaron Gwin, Brendan Fairclough, and Thomas Estaque. The new R1 series (RS01E) rotor is stronger, reduces brake fade, and lowers