The RAM Mounts Handlebar Base with Ball connects to your handlebar clutch/brake clamp, left or right side, and holds one 1" diameter mounting balls. The base fits the control clamps on your motorcycle with 40 mm x 6 mm stainless steel hardware, provided in the kit. Sold individually. Note: 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".