?QUALITY ASSURED?If you are not completely satisfied with your purchase or the product is damaged in transit, please contact us promptly.We will solve your problem promptly. ?MATERIAL?This bike disc brake is made of high quality stainless steel material,hardness of 38-42°, good wear resistance, corrosion resistance, toughness,tensile resistance and not easy to deform, Reinforced angle design, with good hardness, metal anodizing, with better tensile strength and shock absorption. ?Reinforced Bicycle Brake Disc?The hole distance is the international standard 44mm. Stamping process-high hardness, But the thickness is only about 1.86mm. Stainless steel brake disc reinforcement material, high-strength aluminum alloy material, stainless steel floating buckle. Precision manufacturing, high hardness, Adopt international stamping processing, stable quality and no strange sound when braking. Anodized, rust-free, martensitic stainless steel, newly upgraded, hollowed out, and polished, good corrosion resistance, improved strength. ?SPECIFLCATIONS?Bicycle Disc Brake Rotors 160MM 180MM (common 160MM 180MM in the mountain bike; road bike disc brakes generally 140MM); ( caution - need to know the correct model you need before ordering so you get the right brake disc). ?INCLUDED COMPONENTS?2 Bike Disc Brake Rotors, 12 Colored Bolts, 1 Installation Tool.Exterior: Stainless Steel. Material: Stainless Steel. Brand: CANTENDO. Date First Available: August 18, 2022. Best Sellers Rank: #191,679 in Sports & Outdoors. Customer Reviews: 3.5 out of 5 stars 7 ratings 3.5 out of 5 stars. : B0BB38R2PK. Manufacturer Part Number: ?G3CS. Exterior: ?Stainless Steel. Item model number: ?G3CS. Country of Origin: ?USA. Package Dimensions: ?7.76 x 7.68 x 0.67 inches. Item Weight: ?10.2 ounces. Model: ?Bike Disc Brake Rotor. Brand: ?CANTENDO. Manufacturer: ?CANTENDO.