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  • Ok. let's hypothesise that I've been an idiot and bought a band-on front mech without checking the diameter of my seat-tube and found it is too big. Hypothetically.

    If this were to have happened, is it possible to shim it out? It's a 2007 Chorus on an old steel frame (whatever the standard size is, I've checked a few steel frames of the same vintage and it is too big for any of them). Or is this likely to have been designed for a newer standard tube size (oversize alu or something). As far as I know it's just the standard chorus band-on. Or are they all designed to need shims. I've never bought a front mech 'seperate' so never had these issues.

    Hope someone can be bothered with this frankly pretty dull problem.

    Cheers

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