Shimano Dura-Ace SM-BB9000 Bottom Bracket
|Price:||$19.99 - $48.74|
|Sale:||Lower price available on select options|
- Newly designed Chainwheel
- Shell Width: [English] 68 mm, [Italian] 70 mm
- Material: [cups] aluminum
- Recommended Use: road cycling
- Threading: English, Italian
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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. New seals reduce drag and friction by 50% over previous models Top quality, Japanese machined stainless bearings for a long-wearing road life Weighs only 68 grams Designed for 24mm spindle
Top customer reviews
This cupset functions very smoothly once installed but the spindle fit is very tight. When installing the crankarm/spindle, you will very likely need a rubber mallet and a towel (to protect the crankarm from damage) because the spindle will not slide easily through the cups, even when a coating of grease has been applied. Maybe the cups will loosen up in time but I've heard nothing to support this supposition.
This cupset loses a star because these bearings are not serviceable. I've seen maintenance on these cupsets but in my own experience I did not see how I could disassemble these cups without damaging them. If it ever turns out that replacement of these cups is required, I'll replace them with Phil Wood cups. These cups can be serviced and Phil Wood sells the tools to do the work.
UPDATE: Enduro makes a tool to service their comparable bottom bracket cupset and they claim it will work with the Shimano BB9000 and the Ultegra BB as well. https://www.amazon.com/Enduro-Outboard-Bearing-Tool/dp/B0060LOP04/ref=sr_1_6?s=sporting-goods&ie=UTF8&qid=1491244329&sr=1-6&keywords=enduro+bottom+bracket+tools