• Yikes. A 23mm Conti 4000 actually touches the seat tube on my Joe Waugh frame.

    Any ideas for a 20mm tyre? I’d wanted to put gumwalls on this but now looks unlikely.

  • Sure that's not a classic TT frame? Angles look pretty steep.

    You might get a bit more clearance with a 19mm internal rim.

  • It possibly is a TT frame. The seller didn't give much info and I was blinded by the lovely colours.

    That tyre is on a 17mm internal/23mm external rim so it may be that a wider rim spreads it a bit more. Even then, as soon as you pick up any grit, it'll start to eat the paint.

    Thankfully this was always going to be a bike for sunny cafe rides.

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