Driven D Axis Bar End weights are machined out of 6061 aluminum and are constructed using a 2 piece design. The inner piece is anodized black while the outer piece is available in Black, Blue, Gold, and Red. Each bar end has a weight of 2.4 oz. and these bar ends are sold in pairs. These bar ends are designed for use with hollow bars with an inner diameter of 16mm or larger and will fit all late model Honda, Suzuki, and Yamaha sportbike applications as well as most after market clip-ons. These bar ends use a rubber expansion sleeve to secure inside the handlebar leaving no visible hardware to give them a clean, finished look when installed. These bar ends will not fit Kawasaki, BMW or some Ducati applications.