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  1. #1
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    Buy another one or just get a new one?

    i have this Schwinn 17 function cyclometer that I lost the manual to it , and I can't find the codes anywhere on the internet. I am getting a new bike so I took out the battery, before I realized I didn't have the codes anymore . So should I get another one and give it to my brother(he doesn't have a cyclometer) or just get a new cyclometer and forget about this one?
    Here it is if you need to see which one it is http://tinyurl.com/5f8a9h
    Or if anyone has this cyclometer could you send me the codes.

  2. #2
    Lanterne Rouge
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    Do you mean the codes for setting wheel size?

    If so, and if you know how to get to where you have to set the wheel size, just roll the wheel out one full turn and see how many millimeters it comes to in circumference. Try to be as close as possible to exact... then enter in the millimeter measurement for wheel size, and you are all set.
    "Having modest aspirations RULES." --patentcad
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  3. #3
    Scott n4zou's Avatar
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    It will most likely use the same setup as this computer.
    http://www.k3pgp.org/schwinnmanual.htm

    If not your not out any money for trying.
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  4. #4
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    Thanks, I think it should work now. . .

    They don't use the same computer, but it should work anyways. I just can't use a few of the features, but that's cool. I might just buy another one so my brother can have one.

  5. #5
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    Most computers use millimeters, but some don't. It might be in inches or it could be some random number you need to use a multiplier with.

    New Cateye computers use millimeters.
    Avocet computers only used millimeters on some models if your units were set to Km and uses inches for miles. This was not standard for all the units though.

    Three or four digits without a decimal and metric is a good bet. Also possible with "xxx.x"
    Three with a decimal like this "xx.x" is probably in inches.

    If you don't have it reading accurate mileage after that then go buy another one.

  6. #6
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    I wouldn't know if the mileage is accurate unless I have a chase car to tell me my speed, through matching speed.

  7. #7
    Senior Member landshark1's Avatar
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    Check with Sheldon Brown's webpage on computer calibration;

    http://sheldonbrown.com/cyclecomputers/index.html

    I have a Schwinn (not the exact model as yours) on my hybrid. For 700x28c I use the code 2136 , and for 700x40c the number is 2195.

  8. #8
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    Schwinn is great, i have some good expierence on it

  9. #9
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    This Schwinn seems good for the < 10 bucks I paid for it. I have also had trouble keeping track of the manual. This link points to a google doc scan of the 2 essential manual pages for resetting.

    http://docs.google.com/Doc?id=dd3vdfcd_2d9tc7gcs

  10. #10
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    I've got a schwinn 12 function cyclometer, this one uses the wheel factor in millimeters, just measure the circumference of the wheel and enter that number, I also have the chart if you don't want to measure, sheldon brown's site has the info too. good luck.

  11. #11
    Senior Member
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    Quote Originally Posted by somebadlemonade View Post
    I wouldn't know if the mileage is accurate unless I have a chase car to tell me my speed, through matching speed.
    If your odometer is accurate, your spedometer will be also. Check against a know distance, e.g. mileage marked on a MUP from a previous ride held there.

    Also if you want to be accurate in setting your wheel size in the computer, do not go be the rolling distance. Wheel circumferance is function of the wheel's radius. When you mount the bike the tire compresses, the radius changes. Either have someone measure the radius with you on the bike (and normal tire pressure) then circumference is twice radius times 3.17 (pi), roll forward while on bike and take measurement. If you want accuracy, need to start with it.

    Good luck.

  12. #12
    Junior Member Jbass's Avatar
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    Smile Just put one on!!

    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 24"x1.75 1888
    ATB 26"x1.4 1995
    ATB 26"x1.5 2030
    ATB 26"x1.75 2045
    ATB 26"x2 (650B) 2099
    27"x1 2135
    27"x1 1/4 2155
    Got manual right here, anything else??
    LJ Michaels
    Last edited by Jbass; 09-04-08 at 10:17 PM.

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