Reduce The Heat Transfer-Floating brake discs inside and outside the fault generally two kinds of material and through rivet connection, the non-rigid connection, there is some freedom while reducing heat transfer, on the other hand the problem of internal stress to solve. Fast Heat Dissipation-G3 disc has good rigidity and fast heat dissipation, ensures wonderful brake performance.In the long distance downhill slope, the disc will not turn red and hot, which will greatly improve the safety of downhill. High Quality-This brake disc is made of high quality stainless steel, which make it anti-corrosion and not easy to deform. All disc brake hub can be used, oil discs and line discs can be used. More Stable -Floating structure allows certain free longitudinal expansion of the space between friction surface, in order to eliminate the internal pull.Thus, so as the brake can be more stable and reliable. Product Condition: 100% Brand New Type: Bike Acccessory Material: Stainless Steel Color: Silver Adjacent Screw Hole Distance: Approx. 22mm / 0.87inch Diagonal Screw Hole Distance: Approx. 44mm / 1.73inch Weight: Approx. 118-202g Optional Size: 120mm / 4.72inch, 140mm / 5.51inch Package List: 1 * Brake Disc 6 * Screws Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you