The RC03E rotor pairs a centerlock interface with a stiffened, heat-resistant steel construction for consistent, fade-resistant braking. The centerlock design offers a secure and easy installation. Features Improved design reduces vibrations and increases stiffness and power Two-piece design Centerlock rotor mount (lockring not included) Specs Sizes: 160mm, 180mm, 203mm Thickness: 1.8mm (1.5mm Minimum) Mount: Centerlock Lockring: Not included Compatibility: TRP RC03M 1.8mm rotors are compatible with the following: Hub: Centerlock hubs