With the growth of disc brakes on the market, brake discs are becoming a standard accessory.Taking our proven road disc and floating technology, we´ve now combined them into a Centre Lock rib spider, to allow them to be mounted on your road bike.characteristics:.Round edge braking surface.The disc is machined with a radius on the inside and outside edge.2-piece floating design.Available in our 6 standard colors.´´´´ IMPORTANT NOTICE ´´´´ Make sure you have enough free space to use this disc, pay attention to any possible interference with the clamp holder, frame, etc.