RAM Mount Torque 1-1/8" - 1-1/2" Diameter Handlebar/Rail Base w/B Size 1" Ball, Short Arm Level Cup [RAM-B-408-112-15-A-132U]Torque 1 1 8" 1 1 2" Diameter Handlebar Rail Base w B Size 1" Ball, Short Arm & Level Cup 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 Level Cup. Compatible with any