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Thread: how to determine chain length

  1. #1
    joe_f7's Avatar
    joe_f7 is offline At The Back Of The Pack Arm chair racerFirst time rider
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    Mar 2008
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    how to determine chain length

    on my tecate i have a longer swingarm and bigger rear sprocket. i have a 42 tooth rear sprocket with a 106 link chain. i want to go down to a 37 tooth sprocket. do i measure the difference in sprocket diameters and length of a link and subtract? or whats the best way to do it?
    1986 Kawasaki KXT 250 tecate
    ported, FMF pipe, DG silencer, boysen stage II reeds, 39mm keihin PWK, T4 thumb throttle and front master

  2. #2
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    This was posted earlier today. Not sure if it will be useful in this case or not. http://www.3wheelerworldforums.com/s...ad.php?t=99955

    Rob

  3. #3
    joe_f7's Avatar
    joe_f7 is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    Mar 2008
    Location
    SE wisconsin
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    227
    i saw that, but i wasn't sure how accurate is was. i think my swinger is 3" over. that would make a 104 tooth chain according to their numbers with stock gearing which is what i'm switching back to. sounds close but i don't have a exact number my swinger is over.
    1986 Kawasaki KXT 250 tecate
    ported, FMF pipe, DG silencer, boysen stage II reeds, 39mm keihin PWK, T4 thumb throttle and front master

  4. #4
    Join Date
    Aug 2008
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    OK
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    Buy too long of a chain and a chain breaker, then cut it to length.
    Rides:
    1986 ATC250R (sectional pipe and Klemm Research silencer)
    1986 ATC250R (Desert Bike, WAX-ON seat, Dual Cibie lights, Steering Stabilizer)
    1979 ATC110 (Bandito frame and forks, Turbo wheels, disc braked)
    1982 ATC70 (Lifan manual 125)
    1987 LT80 (piped, widened)


    My feedback thread
    http://www.3wheelerworld.com/showthr...ack-for-dcreel

    RIP Trace.. Godspeed.

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