Ram Mounts Ram Brk/Cltch Resv W/1" Ball RAM-B-309-1CH The RAM-B-309-1CH connects to your handlebar clutch/brake clamp, left or right side, and holds one 1in. diameter mounting ball. The chrome base fits the control clamps on your motorcycle with 40mm x 6mm stainless steel hardware, provided in the kit. To see if the RAM-B-309-1CH 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 0.94in. and a maximum of 1.58in..