Check the listing for details. RAM RAM-B-367U Motorcycle Handlebar Clamp Base with 1" Ball & M8 Screws. Condition: New. Listed at 11.99 USD. Manufacturer Description Your motorcycle rides on rubber tires for grip and to soften the ride. Why should it be any different for your mounted electronics? With RAM's patented rubber ball and socket technology, the turn of a single knob grips the adjustment arm to a rubber ball designed to dampen shock and vibration. With RAM products, it's all grip and no slip plus protection for your valuable electronics. Simply place our easy to install ball base onto the motorcycle handlebar top clamp and you're done. After that, a world of mounting possibilities just opened up. Items included:1" Rubber ballM8 x 55 boltM8 x 60 boltM8 x 65 boltWorks on motorcycle handlebar top clamp, any bike that uses an M8 threaded bolt. Features and TipsHere is a list of Motorcycle Handlebar Clamp RAM-B-367U features, along with a few user tips.To determine if these bolts are compatible with your motorcyle measure the bolt for the diameter and add 30mm to the length. If it matches one of the 55, 60, or 65 mm length, then you can use the appropriate bolt supplied with the mount. If it does not match, you may be able to source the correct length of bolt locally or from your BMW dealer. Be sure to use the correct torque spec when attaching the mount. Attachment Point:Motorcycle handlebar top clamp, any bike that uses an M8 threaded bolt.Material:Powder Coated Marine Grade AluminumBall Size:1" Rubber Ball "B" SizeNote:The "U" in the part number reflects product packaged in poly bag.Weight:0.23 lbs.