I am trying to calibrate my bike computer and i need to enter in the correct wheel factor.?
Question by G-M-B-A: I am trying to calibrate my bike computer and i need to enter in the correct wheel factor.?
So I’m looking at the tire and it says 26 X 1.95 but i’m still not sure which is right wheel factor.
Closest options on the computer are:
26″ (650A) or
ATB 26″ X 1.75 or
ATB 26 X 2 (650B)
I have no idea what “ATB” or the “A” or “B” stands for, i was hoping someone who knows bikes could discipher?
Also, the wheel diameter 26.6″ (700 X 25C) is highlighted in bold in the manual for computer, as if that is a common wheel size or something..
Thanks for any help!
Answer by Roger J
Every computer may difer. Refer to the onwers manual. If you lost it, look-up the manufactuer on the web. It’s a very interesting science. I’ve done it several times. Take the time to read.
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