• google showed up a few threads where folks used a 107mm UN55 and it didn't cause major issues...

  • Really? As you probably guess I’m terrible with mechanics.

    Would 4mm cause any issues with Q factor or misalignment of shifting with the chain?

  • You’re detail oriented though? (Aren’t you an architect? I am too) It’s 2mm each side, if you adjust the mechs it’ll be fine 👍🏻

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