Dura Ace BB/GRX 810 crankset compatibility

[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.

[FTPWhor]

Yes, there should be no issues.

[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.

[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]

Ok, thanks for that info. I'll save my pennies until I receive the bb before buying the tool.