XTR RT-MT900 Center Lock Disc Brake Rotor w/ Lock Ring

The pinnacle in mountain bike braking, SHIMANO XTR RT-MT900 disc brake rotors deliver superb stopping power for the most aggressive riding. The ICE TECHNOLOGIES FREEZA rotors dissipate heat to maintain braking performance on long downhill stretches. SHIMANO's CENTER LOCK mounting system makes installing and removing rotors quick and easy thanks to the spine mount and lock ring design.

High-performance and consistent brake performance
- Stable and versatile brake performance in the most demanding conditions

New ICE TECHNOLOGIES FREEZA construction for boosting heat dissipation
- Surface temperature cooled by -20°C (vs RT99, 203 mm)

Rotor size
- 160 mm, 180 mm, 203 mm