RAM X-Grip Large Phone Mount with RAM Torque Medium Rail Base (RAM-B-408-75-1-A-UN10) (sku 53843)Take your mobile entertainment on the road with the new RAM Torque handlebar and rail mounting base. Weve paired a B sized 1 rubber ball base that accommodates bars 3 4 1 in diameter with a B sized short length arm and the dynamic X Grip for larger phones. Sizing inserts are included to provide a snug fit and offer additional protection for the rail. The mount utilizes nylon insert locknuts to prevent loosening in high vibration environments. This low