Shimano Dura Ace SM BB9000 Bottom Bracket Parts Bottom Brackets

Shimano Dura Ace SM BB9000 Bottom Bracket. Ok, Mr. Fancy Pants. We're all very impressed that you got yourself a set of those new Dura Ace 9000 cranks if we sound bitter and jealous, it's because we are. But, you're going to need the new BB9000 to make them work. Lucky for you, we've got just what you need right here. The new SM 9000 bottom bracket is a durable, maintenance free threaded bottom bracket with 50% less rotating friction than the 7900 series.