The EBC Brakes® universal custom disc for naked bikes is constructed using a stainless steel rotor blade with a polished and heat lacquered alloy centre hub. Each disc can be used for either left or right fitment and the quality mirror-like polished finish will improve the look of your bike instantly. The slotted and contoured profile gives reduced weight without compromising performance and also gives improved pad brake-in and reduces disc damage. The outer ring is mounted to the centre hub using EBC Brakes® patented SD-System™ square drive hardware. The SD-System™ buttons have flat sides and are mounted into square pockets in the hub and the ring. This system allows the ring to expand and contract when needed under heavy braking which eliminates brake vibration and disc distortion. Do not attempt to polish the lacquered centre hub as this will destroy the lacquer coating.