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  • Wheel circumference
  • jimmy
    Full Member

    Anyone know what circumference I should have on my computer for 26″ wheels?

    Posted 15 years ago
    clubber
    Free Member

    208 IIRC – it’s been a while though and it’ll depend on the exact tyres that you’re using.

    Posted 15 years ago
    jimmy
    Full Member

    by 208, do you mean 2080? It currently says 2050…

    Posted 15 years ago
    clubber
    Free Member

    It’ll depend on the exact speedo – sounds like yours is working in mm compared to mine in cm but yes, I’d imagine that 2080 will be right

    Actually, it’s not that critical – 205 to 208 is around 1.5% difference – is your speed accuracy that important? 🙂

    Posted 15 years ago
    jimmy
    Full Member

    not really. it was showing 6 miles for a journey that is 5 miles (according to mapmyrun.com). As it used to be on a road bike and now on my MTB, kinda makes sense.

    Posted 15 years ago
    matt_outandabout
    Full Member

    measure radius and multiply by pi?

    Posted 15 years ago
    clubber
    Free Member

    measure radius and multiply by pi?

    Obviously you mean the diameter… 😉

    Posted 15 years ago
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