The RAM-B-309-2U connects to your handlebar clutch/brake clamp, left or right side, & holds two 1" / 25 mm diameter mounting ball. The ball that is connected between the hole centers is removable. The base fits the control clamps on your motorcycle with 40 mm x 6 mm stainless steel hardware, provided in the kit. To see if the RAM-B-309-2 base will mount to your motorcycle, check the hole spacing of the base against your clutch/brake reservoir. The holes centers have a minimum width of 0.94" / 24 mm & a maximum of 1.58" / 40 mm. Features Combination brake/clutch reservoir base for motorcycles with two mounting balls Included B size 1" / 25 mm RAM® rubber ball allows for connection to any B size RAM® double socket arm, ball & socket technology allows for near-infinite adjustability made from Powder-coated, marine-grade aluminum for durability & reliability in the most demanding marine environments Hardware included 2 M6 x 55 mm hex bolts 2 1/4-20 x 2" hex bolts 2 1/4"-20 x 2.5" he...