Features1Prime Materials: Stainless steel brake disc and aluminum alloy bracket material production, strong and durable, full CNC accuracy manufacturing anodic oxidation marking. 2Mechanical Floating Dynamics Design: The best angle of force, and increased hollow design, reduce the weight of the better discharge of mud, drainage, heat dissipation. 3CNC Accuracy Manufacturing High Hardness: Disc unique heat dissipation design, CNC accuracy manufacturing, thickness of about 1.81.9mm. 4Stainless Steel Floating Buckle Design: Stainless steel floating buckle design makes the outer disc and hubs do not lock directly to leave expansion space, a disc fit with 6 screws. 5Applicable Objects: Suitable for most mountain bikes road bikes, can have an effective way to improve the performance of the bike and bring a good use experience.SpecificationItem Type: Brake RotorWeight: 150g / 5.29ozProduct Material: Aluminum alloy, Stainless steelSpecification: Approx. 16cm / 6.30inHole Spacing: 4.4cm / 1.73inThickness: Approx. 0.18-0.19cm / 0.07in-0.075inPackage List1 x Brake Rotor6 x Screws