RAM Mount RAM Torque 1 1/8" - 1 1/2" Diameter Handlebar/Rail Base with B Size 1" Ball, Short Arm and GoPro/Action Camera Mount [RAM-B-408-112-15-A-GOP1U]RAM Torque 1 1 8" 1 1 2" Diameter Handlebar Rail Base with B Size 1" Ball, Short Arm and GoPro Action Camera Mount The RAM Torque handlebar and rail mounting base has a 1 rubber ball and accommodates bars 1 1 8 to 1 1 2 in diameter. Sizing inserts are included to provide a snug fit and protection of the rail. The mount utilizes nylon insert locknuts to prevent loosening in high vibration environments. Included is a short double socket arm and a GoPro