Shimano bb 9000 dura ace 68mm bottom bracket
The shimano bb 9000 dura ace bottom bracket the bottom bracket bearings for the hollowtech ii fc9000 crankset which is the ultimate crankset for stiffness whilst keeping weight low for performance riding and racing minimal bearing interface gives superbly smooth rotation distinctive style that exudes quality and perfection required for installation of fc9000 chainset with a choice of english or italian thread bb cups use tlfc34 or tlfc24 in conjunction with tlfc36 adaptor tool for i