• Ive got sugino 75s and I normally use a Shimano UN55 110mm BB as its the closest you get to the Sugino75 bottom bracket's axle length.
    I'm changing frames from a pre cursa with a 68mm BB to a Italian steel frame with a 70mm BB.
    Do I need a longer axle to clear it or does axle length only refer to exterior length?
    Don't want to order a 110 if it wont clear the frame properly.
    Should I be looking at a 113mm instead?

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