The RAM-B-252U marine-grade aluminum ball base consists of a 1" / 25 mm rubber ball & 2.25" x 0.875" base with 11 mm hole. This part is often used on motorcycles by attaching to the mirror frame. The main brand of bike for the RAM-B-252U is BMW. This part fits well on many handlebar pinchbolts with a washer (base is 5 mm thick). Features Features an 11 mm hole designed to attach to the mirror frame of motorcycles Included B size 1" / 25 mm RAM® rubber ball allows for connection to any B size RAM® double socket arm, ball & socket technology allows for near-infinite adjustability made from Powder-coated, marine-grade aluminum for durability & reliability in the most demanding marine environments
Dimensions Mounting hole 11 mm B size Ball 1" / 25 mm Weight capacity Standard use: 2 lbs / 900 gr. Heavy-duty use: 1 lb / 450 gr.