Electric brake pad for cycling disc brake system. Outer diameter 180mm, inner diameter 58mm, hole spacing 70mm, flat plate. Specification: 180 * 58 * 3.5mm. Thickness: 3.5mm. Weight: approximately 0.55kg. To replace the disc brake disc, measure the outer diameter, inner diameter, and hole spacing of the original disc and check whether it is a flat or concave convex disc. The color of the actual item may slightly differ from the listing images due to different computer screens.