Feature●Size - Outside diameter: 160 mm, 6 holes. The polygonal design and large hole spacing provide good heat dissipation, not easy to collect sand and dust, keep bicycle brake discs clean and reduce wear.●Durable - This brake disc is made of stainless steel, rust resistant and wear resistant, not easy to deform.●Easy to Install - Easy to mount on your disc brake ready frame and fork. The rounded and smooth surface makes the friction more even and the noise is greatly reduced.Description