Shimano ICE Technologies takes the innovative 3-layer clad rotor to the next level by adding radiator fins. The new SM-RT99 rotor is the most effective heat management rotor ever produced by Shimano.

  • More aggressively with higher level of heat stability
Model Number SM-RT99
Series XTR
Disc Rotor Mount
Outside Diameter S: 160mm
Average Weight
Note Ice technologies w/Radiator fin