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  • Shimano - Dura-Ace SM-BB9000 Bottom Bracket - One Color

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  • Shimano - Dura-Ace SM-BB9000 Bottom Bracket - One Color

Shimano Dura-Ace SM-BB9000 Bottom Bracket


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    • One Color, 70/Italian

    4 Reviews


    It doesn’t get much better.

    If the History of Bottom Brackets 101 wasn’t taught in your school, you probably don’t know that Shimano was one of the first to adopt the external bottom bracket. Its Dura-Ace SM-BB9000 Bottom Bracket sits at the top of the line in terms of being serviceable, reliable, and exceptionally durable.

    The SM-BB9000 mates with the new Dura-Ace groupset and uses smaller bearings than the previous 7900 version. This results in a decrease in friction, making them roll even smoother. The new seals that have been incorporated result in a 50% reduction in drag without decreasing the protection levels of the bearings.

    • External bottom bracket
    • Compatible with English (68mm) or Italian (70mm) threads
    • Item #SHI0592

    Tech Specs

    [cups] aluminum
    Shell Width
    [English] 68 mm, [Italian] 70 mm
    English, Italian
    Recommended Use
    road cycling
    Manufacturer Warranty
    2 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Super nice.

    • Familiarity: I've used it several times

    Super smooth and lightweight. Shimano does a great job with so many products. Their BBs and chains are definite bargains. I have a couple DA 7800 versions of this BB that are 10 years old now and still silky smooth (although not as lightweight). By contrast, my girlfriend is on her third Trek BB90 bearing set in 4 years.

    keep it simple

    • Familiarity: I've used it several times

    I'm a Chris King (CK) junkie and love his headsets and hubs. When my Shimano DA BB started to sound gritty, I pondered investing in a CK steel BB for my Ridley Excalibur at around $150. Then I thought more about the hub greasing tool ($60) and the BB service tool ($45 ish), and the adapter kit required which brought the investment to ~ $250.
    The original Shimano DA BB had lasted 5 years and have provided good service. Then I noticed Competitive Cyclist had an updated model of my old BB for only $28 ea. Hmmm, $28 or $250 ? I bought two of the updated DA BB's and am happy as a clam. Smooth as butter and hopefully I'll get another three - five years out of them.

    Reliable, predictable and affordable!

    • Familiarity: I've put it through the wringer

    If you are using a Shimano crank, save your $$$ and stick with the Dura Ace BB. In my experience, it rolls with the same low-resistance than the high-$$$ options and is made with typical Shimano quality. You won't spend time obsessing about weather it "feels better" than something else. Everything you need, nothing you don't.

    Will this work with the Ultegra 6800 crankset. Also I have a Litespeed bike and don't know if it is English or Italian sizing?

    Unanswered Question

    I have a 1999 Trek 5000 carbon frame and would like to order this BB9000 to match up with my DA 7900 crank set (to replace the DA 7700 Octilink that was originally installed on the bike). I saw a previous answer that this 9000 BB is compatible with a DA 7900 crank set but need you to clarify if there is any compatibility issues with my bike regarding the "reversed" threading-the drive side turns clock-wise to loosen and counter-clockwise to loosen the non-drive side. Thank you.

    Unanswered Question

    I am trying to build a CX bike for commuting and racing a bit in cyclocross. I would want to fit this with a Shimano 105 CX 50 crankset. Does anybody have any idea if it will fit? If not any suggestions?

    Will this work with a DA-7900 Crankset on a 2012 Cervelo P3?

    Unanswered Question

    I am looking to build my first bike (scary prospect). I have a shimano 9000 set available. When I purchase a frame what brackets are compatible. I see bb30s, 86s, 68, and fsa. Which should I get?

    Thanks in advance.

    If I purchase a 52/36 172.5 Dura Ace 9000 crank would I go for English or Italian? I ride a Felt AR.

    What's the difference?

    I saw an answer that this BB is compatible...

    I saw an answer that this BB is compatible with 7800 crankset. Therefore, it is ok to use with 7900 crankset. Please confirm. Thanks.

    I have a FSA MegaEXO BB 70/68, M36x24T...

    I have a FSA MegaEXO BB 70/68, M36x24T Bottom Bracket with 24mm shafts. Will the DuraAce SM-BB9000 replace the FSA?

    Is this BB compatible with FSA crankset?

    Is this BB compatible with FSA crankset?

    Best Answer


    The Crank should be compatible with the Shimano BB as most FSA crank shafts are 24mm and Shimano Axles are 24mm so it should fit right up. Just insure you do not have a 30 mm axle shaft which is on BB30 cranks and PF30 cranks. I hope this helps contact me at if you have any other questions.



    Its possible they could work, but FSA cranks should use FSA BB and Shimano to Shimano. FSA is on the high end of the 24mm tolerances and Shimano is on the low end so usually there are some fit issues.

    Technically they should work, but thats often not the case.

    will this be compatible with an ultegra...

    will this be compatible with an ultegra 6750 crankset? also, it is a better bb than the bbr60/bb6800?

    Yes this is comparable with the Ultegra 6750 crank. The bearings tend to be better on the top shelf Dura Ace products than the rest of the line. If you have any additional questions, please contact me at



    Can I use this bottom bracket with an...

    Can I use this bottom bracket with an Ultegra 6800 cranckset?


    Compatible with Dura Ace 7800 cranks?

    Compatible with Dura Ace 7800 cranks?

    I currently ride a Dura Ace BB 7400, 70...

    I currently ride a Dura Ace BB 7400, 70 (Italian) with 113mm spindle. Do I need a longer spindle to ride with the Dura Ace BB9000 BB?

    would this be compatible with a shimano...

    would this be compatible with a shimano 105 from 2 years ago?