Bicycle Disc Brake Rotor Stainless is completed with two types of material through the connection rivets. This connection reduces heat transfer and solves the problem of internal tension of the brake disc metal. The thermal energy generated during braking is efficiently dissipated through the Bicycle Disc Brake Rotor Stainless. 1 floating rotor disc with 6 bolts. made of stainless steel and aluminum super-Fuerte alloy and durable alloy. The floating system with rivet connection provides good performance of the bicycle brake system. Suitable for most mountain and road bicycles with standard six-bolt bushings. Easily fits onto your bike.