The new CenterLine brake disc was developed to keep the center of friction constant while the wheel rotates. This reduces vibrations and ensures more consistent performance and a quieter ride. The rounded edges make it easier to fit the wheels and comply with UCI standards.Materials: steelBinding system: Center Lock Delivered without clamping nutUse Beginner mountain bike / Cycling, Marathon / XC Race, All Mountain / Enduro, Downhill / Freeride, Tout- terrain / Beginner, Hiking / Cross Country, Marathon / XC, MTB / Trail, Enduro, Road, Cyclo-cross, Gravel, Aero, Endurance, Triathlon