Features: This brake disc is made of high quality steel, which make it anti-corrosion and not easy to deform. Lightweight and durable for long term use. The shape of the disc ensures good heat dissipation under heavy braking sessions, reducing brake fade, warping, and ensuring rotor longevity. Floating system design can reduce disc warp at high temperature, reduce heat transferred to hub. Ensures wonderful brake performance. Specifications: Condition: 100% Brand New Item Type: Bike Brake Disc Material: Steel Optional Color: Black, Red, Gold Bolts: 6 Diameter: Approx. 140mm / 5.5inch Thickness: Approx. 1.84mm / 0.1inch Weight: Approx. 123g Package List: 1 * Brake Disc 6 * T25 Screws