• It's a touring bike, so yes, it needs a triple. Scotland hills make you acknowledge the existence and need of 22F*23R... :):)

    Ultegra on 118 Octalink.
    Single speed is sugino75 on 110 bb
    So a good 8mm

  • Fair enough!

    The BB isn't the whole story though, you need to measure the actual Q on both beiks and work from there.

    Different cranks will have different shaped arms, so it's not necessarily the case that the difference in Q will be the same as the difference in BB.

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