• Hm, almost finished with my Surly Big Dummy build, nothing that special, but here we have 52 in the back, 36 in the front with an 12 speed cassette and chain and a 2.3 tyre – should I go down to 2.15 width tyre? Or leave it and just change it when it explodes?

  • 52 in the back, 36 in the front

    If it does snag, it's going to be when you're going pretty slowly. I'd ride it and see what happens, which in all probability is nothing bad.

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