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  • I am having internal everything, so this might well be the reason why the T47 BB idea. It's also a titanium frame, so this might also have something to do with it due to the tube size?

    As for crankset, as we discussed a few pages back, I have my eyes on the Shimano XT M8000 1 x 11 because I am having flatbars.

    This is one of the brands recommended to me and works with the the M8000...

    https://rideworks.cc/shop/t47-bb/

    Anyone heard of them? They are relatively new and is UK based.

    Also, it seems like some brands do offer both 24mm and 30mm and prices are the same - very expensive... :-(

  • I am having internal everything, so this might well be the reason why the T47 BB idea. It's also a titanium frame, so this might also have something to do with it due to the tube size?

    I'd ask why a BSA shell is unsuitable and what compromises they'd need to make to make a BSA shell suitable.

    I have a pretty hefty downtube on a Ti bike welded to a BSA shell, looks fine. But everything is external. Oh when life was simple.

  • I will do and will report back. I spoke to another mechanic today, he is open to the challenge and is willing to invest in tools to fit T47 BBs, but he is asking the same question - why?

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