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  • Prongramming the bike computer I just got is well... like programing a computer.

    It has 2 A2 sheets of just english instructions, but none of it seems to explain much.

    Id be happy with just a trip distance and speedo function, so am manily trying to enter my wheel size.

    However on the size entry bit,

    it has a 4 digit selection, where the first digit can only be 1 or 2, the rest of the digits can be 1-9.

    What units of measurement can that possibly be?

    what on my wheel is one or two thousands big?

    I have a 700c on the front, and a 27" 1 1/4 on the back.

    these are total wheel & tyre circumferences right?

    My front rim is actually, 622mm.

    Can anyone throw me a guess of what figure I am suppossed to be entering?

    Much thanks.

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