Sram Force 22 BB30 in T47 Bottom bracket

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  • Any help much appreciated:-

    trying to fit a chainset into my new Singular Kite frame which as a T47 BB. I've installed a Wheel Manufacturing outboard BB and trying to install a used chainset from my Cannondale Slate but struggling and the Sram online documents do not mention T47
    Anybody help with number/type/size of spacers required? It comes with the circular preload 'thingy' which is installed on the none drive side

  • How much slack with all the spacers and preload doobry removed? Shouldn't be much. Could fill a tiny amount with narrow plastic BB/PF30 spacers. Anything larger a wave washer could handle. Not sure there's enough space with outboard cups for the preload doobry.

  • I've had the same issue with a Wheels Manufacturing T47 BB on a GXP crank, in that it needed a shit load of spacer. The Rideworks one I had fit perfectly. maybe they've not used the proper shell width dimensions

  • Thanks. Lots - 20mm

    Photos attached


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  • Those are the internal cups, no? The outboard cups look like CK/HT2 cups.

    Either way, with what you have you mount it the same as if it was in a PF30 cup or BB30 and use the preload doobry to take up the slack.

  • Thanks. I don’t really want to fit another after spending £90 on this one.

  • or just fit some Hollowgrams

  • or just fit some Hollowgrams

    Wash your mouth out.

    looks like you need some 30mm diameter spacers to take up the slack

  • looks like you need some 30mm diameter spacers to take up the slack

    He does, yes, in the same way he'd need some if it was going in a standard BB30/PF30 shell.

  • The outboard one looks like this.
    Had the same issue but the other way around on a mate's trek where the outboard one ended up too wide.

    Not sure how many spacers you'll need sorry. Not a very helpful comment at all in fact. Ah well.

  • sorry, yes not sure why I said outboard!?

    that makes sense I'll revisit the instructions. Still think I may need another spacer? these were used on a Cannondale Slate which I think is BB30a - slightly wider?

  • thanks, happy for the input

  • I think I need the 4.84mm spacer?


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  • Yep BB30a is like 5mm wider, 72mm overall I think. All of it is on the drive side, hence the a for asymmetric.

  • Brilliant - just need to find that 5mm spacer...

  • Ask your LBS for a few assorted spacers, we're always hoarding

  • Thanks everybody for help. Found a couple of 2.5mm spacers in my spares and seem to fit and no play. I think the spacers on the non drive side should be next to shell though!


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Sram Force 22 BB30 in T47 Bottom bracket

Posted by Avatar for pryally @pryally

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