bike disc brake rotor<br/><b>Description</b><br/><br/>Generally speaking, there are two kinds of materials inside and outside the floating disc, which are connected by rivets. This connection is not rigid. The thermal attenuation is related to the high temperature resistance of the material, and the disc will not reduce the thermal attenuation.<br/><br/><b>Features</b><br/>Bicycle disc brake<br/>-Color: Red.<br/>-Material: Aluminum alloy inner frame,stainless steel outer frame.<br/>-Size:<br/>16 cm/6.30 inch.<br/>Hole distance: 44mm/1.7in.<br/>Process: CNC engraving and milling, anodizing, stamping forming<br/><br/><b>Package Including</b><br/><br/>1 * Bicycle disc brake<br/>n6 * screws