Wheel circumference

FSR_XC
FSR_XC Posts: 2,258
edited March 2008 in MTB general
What's the average wheel circumference for a 26" MTB wheel running a 2 / 2.1 tyre?

I know they vary depending on the tyre - hence 'average'
Stumpjumper FSR 09/10 Pro Carbon, Genesis Vapour CX20 ('17)Carbon, Rose Xeon CW3000 '14, Raleigh R50

http://www.visiontrack.com

Comments

  • nicklouse
    nicklouse Posts: 50,673
    wheel or tyre? and why do you need it? it is not hard to measure.

    but as the tyre you mention give a diameter of 26" so a bit of math..... will give a very close actual circumference.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
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  • big_southern_jesse
    big_southern_jesse Posts: 729
    Easiest way to do it is to place a marker on the floor, roll the bike forward one complete revolution, and place a second marker on the floor. Measure between the two markers!
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  • John Stevenson
    John Stevenson Posts: 962
    cateye suggests calibrating their computers to 2068mm for a 26 x 2.1

    The range you're interested in
    26x 2.35     2083	
26x 2.125    2070	
26x 2.1      2068	
26x 2.0      2055	
26x 1.9      2050
    John Stevenson
  • xtreem
    xtreem Posts: 2,965
    Hey, I have a Cateye speedo, and 1.95 tire . I measured the circumference and it was 205cm. So the table of John Stevenson is pretty much correct.
    NS Bikes Eccentric Alu custom - 2016
  • FSR_XC
    FSR_XC Posts: 2,258
    John Stevenson wrote:
    cateye suggests calibrating their computers to 2068mm for a 26 x 2.1

    The range you're interested in
    26x 2.35     2083	
26x 2.125    2070	
26x 2.1      2068	
26x 2.0      2055	
26x 1.9      2050

    Many thanks
    Stumpjumper FSR 09/10 Pro Carbon, Genesis Vapour CX20 ('17)Carbon, Rose Xeon CW3000 '14, Raleigh R50

    http://www.visiontrack.com

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