• My new sram mtb crank arrived today but I cant get it to sit centrally on the frame?

    The distance between the crank arm and chainstay is ~17mm on the non-drive side and ~20mm on the drive side. I've added a 2.5mm spacer to each side of the BB shell (as per instructions - its a mtb crank/spindle on a 68mm BB shell). Everything spins freely when tightened up.

    Any ideas? if I put 2x spacers on the non-drive side the gap difference is reversed (i.e. 20mm gap on the non-drive side, 17 on the drive side)

    its like I need a 1.5mm spacer!

  • I need a 1.5mm spacer!

    How did you sort the crank issue?

    You guys worry too much. None of those mms matter when you're pedaling. Probably something something something chainstay design something something.

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