Ram Mount Motorcycle Brake/Clutch Reservoir Base with 1-Inch Ball Connects to the left or right side of your handlebar clutch/brake clamp Holds one 1" diameter mounting ball The base fits the control clamps on your motorcycle with 40mm x 6mm stainless steel hardware, provided in the kit Check the hole spacing of the base against your clutch/brake reservoir The holes centers have a minimum width of 0.94" and a maximum of 1.58"