Clarks CFR-13FA Floating Disc RotorA two-piece rotor for the most venturesome MTB riders, this Clarks effort minimises brake-generated heat without compromising on top stopping performance. Comprising of an alloy spider with a heat-resistant stainless steel brake track, both parts complement each other to prevent heat-warping under extreme braking pressures. Equipped with a built-in wear indicator and chamfered edges, this powerful and efficient disc rotor is the ideal addition to any hard-rising disc brake setup. Features Material: Spider: 7075 Alloy; Brake Track: Heat-resistant Stainless Steel Bike Compatibility: MTB, hybrid Diameter: 140mm Buy Clarks Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.