1" Socket (25mm) Twist & Lock Adapter for TiGRA Sport Cases fits RAM Motorcycle Mounts (sku 20242) 1" socket (25mm) Twist & Lock Adapter for TiGRA Sport Cases fits RAM Motorcycle Mounts. The adapter uses a standard 1" socket which is compatible with any motorbike mount using 1" ball fitting including the RAM-B-231Z, RAM-B-324 & BuyBits Yoke Nut & 12mm Stem Mounts. Adapter uses the TiGRA twist & lock attachment system. Enables you to attach your TiGRA case to a RAM motorcycle mount.