Dura Ace BB/GRX 810 crankset compatibility

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liam7020
Posts: 1257
Joined: Tue Jul 27, 2010 10:04 am

by liam7020

I need to replace the BB on my cross bike. Does anyone know if the Dura Ace SM-BB9100 bottom bracket is compatible with the GRX 810 1x crankset? Thanks.
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FTPWhor
Posts: 60
Joined: Fri Feb 16, 2018 2:47 am
Location: Minneapolis

by FTPWhor

Yes, there should be no issues.

liam7020
Posts: 1257
Joined: Tue Jul 27, 2010 10:04 am

by liam7020

Thanks for that. I managed to find the Shimano compatibility chart and I think you're quite right. For some reason best known to Shimano, the OD of the notched cup is different between Ultegra and DA, so it looks like I'll need yet another bottom bracket tool! Cheers.
Tarmac SL6 & Campag Record EPS https://weightweenies.starbike.com/foru ... 0&t=153968

"Sometimes you don't need a plan. You just need big balls." Tom Boonen

anzi
Posts: 41
Joined: Sat Aug 17, 2019 10:11 am

by anzi

If my memory is to be trusted Dura-Ace bottom bracket comes with an adapter so you can use a standard bb tool.

liam7020
Posts: 1257
Joined: Tue Jul 27, 2010 10:04 am

by liam7020

Ok, thanks for that info. I'll save my pennies until I receive the bb before buying the tool.
Tarmac SL6 & Campag Record EPS https://weightweenies.starbike.com/foru ... 0&t=153968

"Sometimes you don't need a plan. You just need big balls." Tom Boonen

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