Baradine Light Weight Colorful Bike Floating Disc Brake Rotor 6-Bolt Patent design of floating disc brake rotor by Baradine - for your better brake experience! What's floating disc brake rotor? A floating rotor is seperated into a outer ring and inner frame, connected by rivets in non-rigid structure, which vertical movement between the two parts is allowed. During a brake, a normal rotor experiences uneven thermal expansion due to fictional force, together with unequal stress applied on it, the disc will soon wear out and deform. For a floating rotor, the loose, riveted connection creates a buffer between the outer ring and inner frame, equalizes stress to the whole disc, provides a more stable and smooth brake experience. On the other hand, the chances of wearing and deformation is minimized, making a floating rotor much more durable than normal rotor. Product Feature: 1. Special patened design of stainless steel rivets that connects the outer ring and the hub in non-rigid structure, .for separationg outer and inner disc to provide disc expansion space, allows vertical movement for buffer during a brake. 2. Disc made of enhanced steel, stainless, hard, malleable, abrasion resistant. 3. Holes in designed pattern, maxmizing the performance in cooling, discharging water and dirt. 4. Inner disc made with light yet strong aluminum alloy, anodized, multiple choice of color.