XCSOURCE 7/8" 1" Motorcycle Handlebar Chrome Black Dial Clock (Black) Glow in Dark for Universal Harley Honda Suzuki Yamaha MA543 High quality, Durable. Easy to install, high effiency. Glow in Dark, Water Resistant, Shock Resistant. Fit for most Harley, Honda, Suzuki, Kawasaki, Yamaha motorcycle / Cruiser / Chopper / Custom with 7/8" or 1" handlebar. Fits 7/8" (22mm) handlebar, also fits for the standard 1.0" (25mm) bars,just mount the Clock by tighten the screw. Powered by LR626 Battery (included).