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  • help with bicycle related maths.. ..charity bike ride sponsoship
  • spectabilis
    Free Member

    My cousin just completed a charity ride from Reditch in the Midlands to Valley, Anglesey. 190miles

    I’m thinking of sponsoring him per wheel revolution….

    I think I’ve managed to work out that with a 28″ wheel/tyre diameter I can pay him 1p per 100 revs to give a total of £14.20p. But my brain was starting to hurt..

    Anyone fancy doing some number crunching?

    Posted 10 years ago
    seosamh77
    Free Member

    10p a mile or stop being tight and just give him the score note! 😀

    Posted 10 years ago
    Junkyard
    Free Member

    Give him the amount of money you want to , explain your rationale, hope he is as bad at maths as you are 😉

    Posted 10 years ago
    fhendry1
    Free Member

    190 miles = 305 775.36 metres
    700x23c circumference is 2.1 give or take a bit.
    305775.36/2.1=145607.314286
    1p per hundred turns so 145607.314286/100=1456.07314286
    So £14.56 I reckon, could be wrong though.

    Posted 10 years ago
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