Features: High strength center lock structure, which can provide strong braking force even during intenses cycling and avoid the influence of rotor stress.<br> The bike disc brake Rotor is make of Aluminum alloy and high carbon steel, with high strength, not easily to deforms, and excellent rusts prevention and wear resistance.<br> The polygonal airflows designs and large hole spacing provide good heat dissipation performances and reduce brake attenuation and warpage, thus ensuring excellent brake performances.<br> Excellent dry and wet performances, good wear resistance, quickly ventilation and good heat dissipation.<br> Used as front disc brake bike and rear disc brake bike, easily to install.<br> Specifications: Materials: Aluminum alloy and high carbon steel<br> Color: Black/Red/Pinks/Purpleness<br> Diameter: about 16cm/6.3inch<br> Package Includes: 1Pc Bike Disc Brake Rotor<br> note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store