Shimano bb5700 Bottom Bracket
04-19-26 | 05:43 PM
#1
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Bikes: Tommasini Prestige w/ Campy Super Record. 2012 BMC RaceMachine Ultegra. Kona Jake the Snake 105, Guerciotti Aelle/Gipiemme, Giant 890/Shimano STX.
Shimano bb5700 Bottom Bracket
Hey, looking for some help with this obscure problem. My old Kona Jake the Snake needs a new bottom bracket. The Shimano one in there now is labelled SM BB5700 BC 137-31, from around 2008 I think. All the replacements I can find online are labelled 137 x 24. Can anyone tell me whether this is compatible or what I should be looking for? Doesn't have to be OEM, this bike is now used used as an indoor trainer only.
Any help appreciated!
Clint
Any help appreciated!
Clint
04-19-26 | 06:49 PM
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From Google-The Shimano SM-BB5700 is a 105-level, threaded external bottom bracket designed for Hollowtech II road cranksets.
The "BC 1.37 x 24" (or sometimes "137-31" in misread markings) signifies the English (BSA) standard, which is the most common threaded type
The "BC 1.37 x 24" (or sometimes "137-31" in misread markings) signifies the English (BSA) standard, which is the most common threaded type
04-19-26 | 08:38 PM
#3
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Joined: Mar 2025
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From: British Columbia, Canada
Bikes: Tommasini Prestige w/ Campy Super Record. 2012 BMC RaceMachine Ultegra. Kona Jake the Snake 105, Guerciotti Aelle/Gipiemme, Giant 890/Shimano STX.
Thank you Bill. That is weird - the marking is very clear, not "misread", but I will try buying the standard and see how it goes.
Thanks, Clint
Thanks, Clint
04-19-26 | 09:01 PM
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04-20-26 | 08:07 AM
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