This ball connects to the open hole on the side of the RAM-B-309-1 (single 1" ball) and is included with the purchase of the RAM-B-309-2 (double 1" ball).
Will this mount fit my motorcycle? Try the RAM Motorcycle Mount Wizard.
Color: Black Powder Coat
Ball Size: 1 Inch Rubber Ball
Material: Powder Coated Marine Grade Aluminum