• I think the ‘30mm’ ones measure ~27mm new on 13mm internal rims. They’ll stretch a bit probably, other Panaracers-made tyres are similar.

    On 17mm internal rims they measure 30mm.

    The 33mm tyres actually measure all of that, even on 13mm internal rims. They’re thin/soft and probably have more stretch I guess.

  • Thanks, good to know I’ve not got a duff set.

    Any tips for supple 700C tyres that actually measure ~28-30mm on 13mm internal rims?

    Trying to max out volume on a Vitus 979 frame being reinvigorated as a beater.

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