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  1. #1
    Senior Member rykoala's Avatar
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    Schwinn Bike Computer numbers for wheel size

    I just got one of these, and I KNOW I'll lose the manual so I took 2 minutes and typed it out. When you turn on a schwinn bike computer it asks for a wheel number. Here is the chart.

    Schwinn Bike Computer Wheel Size numbers
    Wheel Diameter Number
    20" 1596
    22" 1759
    24" 1916
    26" (650A) 2073
    26.5" (Tubular) 2117
    26.6" (700x25C) 2124
    26.8" (700x28C) 2136
    27" (700x32C) 2155
    28" (700B) 2237

    w/ tire
    ATB 24X1.75 1888
    ATB 26x1.4 1995
    ATB 26x1.5 2030
    ATB 26x1.75 2045
    ATB 23x2 (650B) 2099
    27x1 2136
    27x1 1/4 2155

    Hope this helps someone other than myself!

    Take care,

  2. #2
    Senior Member NeoBinary's Avatar
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    I just had to say this was super duper helpful. It just so happens that I did lose my manual.

    Thanks!

  3. #3
    cab horn
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    Pfft don't need any manual.

    http://sheldonbrown.com/cyclecomputer_calibration.html

    And there's a way method of deriving the number which all bike comps use... which is also on that page.

  4. #4
    Evil Genius capsicum's Avatar
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    and thats tire circumference in mm, not wheel diameter.
    "Data is not the plural form of annecdote."
    "yuo ned to be deadurcated"

  5. #5
    Newbie
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    thanks

    That little piece of paper, is so important. I knew it was important, so I saved it till my little one used it,
    to make a picture. I do thank you for letting us all have a copy. As the tin man said" only if I had a brain." Well since you did, We are all coverd. thanks

  6. #6
    Senior Member Bill Kapaun's Avatar
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    The numbers also match the cheapo Bell computer.

  7. #7
    clueless
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    Yes they do, I got the Bell computer a while back and it works very well for a $15 unit. I checked it for accuracy on a treadmill ^_^ and it was .2 MPH slow at 10 MPH, which I thought was pretty good for that price.

  8. #8
    Senior Member Bill Kapaun's Avatar
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    Quote Originally Posted by T3hk1w1 View Post
    Yes they do, I got the Bell computer a while back and it works very well for a $15 unit. I checked it for accuracy on a treadmill ^_^ and it was .2 MPH slow at 10 MPH, which I thought was pretty good for that price.
    Recalibrate.
    Use your current setting x 1.02. Or let some air out of your tire

    Keep in mind that most any digital display is +/- one digit.

    BTW, my 26x1.50" tires actually measure 1.6" as determined by the "wrap a string around the tire and measure the string" method.

  9. #9
    Strong with the Fred Big_e's Avatar
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    I still have my chart but my beady little eyes have a hard time seeing the small print so thanks!
    Ernest
    I love pho long time.

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