Description:Strong heat dissipation, floating buckle design,and paint protection are the shining points of this product, which make the outer disc not locked with the hub, leaving room for expansion.Made of aluminum alloy and stainless steel, the bike brake rotor is corrosion resistant, wear resistance and dirt removal. It must be the perfect choice you you to have this product.Made of aluminum alloy and stainless steel, it is light-weight and smooth.Three sizes are available for you to choose.It is suitable for outdoors, bike part shops, etc.Item Name: Bike Brake RotorMaterial: Stainless Steel,Aluminum AlloyFeatures: Heat Dissipation, Safe, SmoothSize Details: Outer Circle Diameter: Size S: 16cm/6.3" (Approx.), Size M: 18cm/7.09" (Approx.), Size L: 20.3cm/7.99" (Approx.)Center Distance: 4.4cm/1.73" (Approx.)Brake Rotor Thickness: 0.18cm/0.07" (Approx.)~0.19cm/0.07" (Approx.)Notes:Duetothelightandscreensettingdifference,theitem'scolormaybeslightlydifferentfromthepictures.Pleaseallowslightdimensiondifferenceduetodifferentmanualmeasurement.Package Includes:1 x Bike Brake Rotor (Others Not Included)