Bonamici Clip-Ons are machined are machined from 6061-T6 billet aluminum. Designed with a 10mm lift of the bar angled at 6.5 degrees down for a high level racing feel. Stainless Fastener Hardware and Delrin End Caps included (easy to remove for installing Brake and Clutch Lever Guards). Color Black Clip-Ons Cuffs and Bars. Replacement Clip-On Bars sold separately. Fits motorcycles with 50mm fork tubes.  Bonamici is the Technical Partner for World Superbike Teams Honda Racing, Aprilia Racing, and Althea BMW. Â