RAM Mounts Torque Bar 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. Features: Sizing inserts are included to provide a snug fit and protection of the rail Powder coated Utilizes nylon-insert locknuts to prevent loosening in high vibration environments