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  • A 28c tyre pressure should be a fair bit less than a 25c to be equivalent. That's why at the same pressure they roll faster. A 28c at 90psi is absurdly hard, a 25c at 90psi is fine. Equivalent will be pumping the 25s to 110ish.
    Armchair rant over, sorry

  • As per the rolling test, does not the result of tests say different?

    Or is there a different real world result to lab?


    2 Attachments

    • Screenshot 2023-07-12 at 15.13.51.png
    • Screenshot 2023-07-12 at 15.11.04.png
  • So, less than 1W improvement in Crr, which could easily have vanished with the aero losses and both of which are almost certainly blasted into nothingness with atmospheric pressure and wind conditions.

  • Read the first paragraph. Is not equivalent, is way harder.
    Or do you ride gravel tyres at that pressure?

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