This Centerline X 2P Centerlock Brake Disc can be mounted with the centerlock system. This brake disc consists of two parts: an alloy center and a steel brake track. This makes the brake disc extra lightweight and weighs only approximately 118 grams with a diameter of 160 mm. This design also ensures that heat is better dissipated, so you can expect better and reliable braking performance. The brake disc makes little noise when braking. This SRAM brake disc has a rounded side to prevent injuries.