RAM Mounts (RAM-B-309-7U) Motorcycle Handlebar Combination Base for Brake/Clutch Reservoir Combination handlebar and brake/clutch reservoir base with 1" ball Almost infinite adjustment and perfect viewing angles are provided in this kit The zinc coated metal U-bolt accommodates rails in diameter from 0.50" to 1.25" in diameter Standard or metric thread stainless steel bolts, provided in the kit Powder Coated Marine Grade Aluminum