Campagnolo cn re500 coupling pin 11 speed this campagnolo cn re500 coupling pin is made from the finest materials with campagnolo youre getting finely tuned and intricately crafted cycling products and this coupling pin is no exception th key features campagnolo cn re500 coupling pin for 11 speed campagnolo chains warning this pin is only to be used when assembling a new chain using the external link permanently identified by the stamped production batch number joining the