Material type:Stainless Steel, Aluminium Package Dimensions:20 x 20 x 2 cm 1. Prime Materials: Stainless steel brake disc and aluminum alloy bracket material production, strong and durable, full CNC accuracy manufacturing anodic oxidation marking. 2. Mechanical Floating Dynamics Design: The best angle of force, and increased hollow design, reduce the weight of the better discharge of mud, drainage, heat dissipation. 3. CNC Accuracy Manufacturing High Hardness: Disc unique heat dissipation design, CNC accuracy manufacturing, thickness of about 1.81.9mm. 4. Stainless 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. 5. Applicable 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. Spec: Item Type: Brake Rotor Weight: 150g / 5.29oz Product Material: Aluminum alloy, Stainless steel Specification: Approx. 16cm / 6.30in Hole Spacing: 4.4cm / 1.73in Thickness: Approx. 0.18-0.19cm / 0.07in-0.075in Package List: 1 x Brake Rotor 6 x Screws About this item Applicable 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. Mechanical Floating Dynamics Design: The best angle of force, and increased hollow design, reduce the weight of the better discharge of mud, drainage, heat dissipation. Prime Materials: Stainless steel brake disc and aluminum alloy bracket material production, strong and durable, full CNC accuracy manufacturing anodic oxidation marking. Stainless 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. CNC Accuracy Manufacturing High Hardness: Disc unique heat dissipation design, CNC accuracy manufacturing, thickness of about 1.81.9mm. Applicable 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. Mechanical Floating Dynamics Design: The best angle of force, and increased hollow design, reduce the weight of the better discharge of mud, drainage, heat dissipation. Prime Materials: Stainless steel brake disc and aluminum alloy bracket material production, strong and durable, full CNC accuracy manufacturing anodic oxidation marking. Stainless 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. CNC Accuracy Manufacturing High Hardness: Disc unique heat dissipation design, CNC accuracy manufacturing, thickness of about 1.81.9mm.