Great Performance: Polygon air flow design of bike disc brake rotor and large hole spacing provide a good heat dissipation performance and not easy to gather sand and dust, keep the bike brake rotor clean and reduce the wear. Disc Brake Rotor Size: The outer diameter of mountain bike rotors is 160mm, the center diameter is 47mm. The thickness is 2mm. Premium Material: Disc brake rotor is made of high-quality stainless steel, rustproof and wear-resistant, sturdy and durable, not easy to deform. Wide Application: 160mm Disc brake rotor is suitable for road bike, mountain bike, MTB, road racing bike, BMX, etc. What You Get: Comes with 2 pieces stainless steel bike brake rotor and 12 pieces screws, convenient to install and enough for you to replace your old or broken one. Feature: Large hole spacing design of bicycle brake disc can effectively prevent gathering the dust and sand, keep the disc clean and bring you a pleased riding experience. Hollow edge design of bike brake rotor provide a good heat dissipation performance and wear resistance, suitable for long-term use. Disc brake rotor is made of high-quality stainless steel, rustproof and wear-resistant, sturdy and durable, not easy to deform. Specification: Material: stainless steel Size: Disc Brake rotor: 160x160x2mm Center Distance: 47mm Screw: 9x12mm Color: silvery Total Weight: 224g Package Includes:2*disc brake rotor+12*screws