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Thread: +4 swingarm on a ATC

  1. #1
    Join Date
    Aug 2006
    Location
    Eugene, Oregon
    --
    82

    +4 swingarm on a ATC

    well i was wondering when having a longer swingarm you need a longer chain, right? Well i was wondering the probility of having the chain snap because it was longer. I was a The Oregon Dune Fest and saw many bikes thro the chains. It scares me to think what kind of damage it dose.

  2. #2
    Join Date
    Jun 2004
    Location
    potsdam ny
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    1,227
    no problems, if you go extremely long, you will need a chain slider, but you dont need one up to about 8 inches, and keep you chain adjusted so its not slopping around. i did a +4" on my R and it made the bike much more rideable, and its still very trailable.
    1985 Honda ATC250R drag trike with s/t kit and full drag CR hybrid motor and drag chassis...
    1986 Honda ATC250R daily rider fully modded engine, +4 swinger,etc...
    1997 Polaris Storm 800 triple, boyesen reeds, dg individual silencers, 240 studs, 123mph on radar...

  3. #3
    Join Date
    Jul 2005
    Location
    Pennsylvannia
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    1,147
    The chains usually snap because they are old and worn or because they have a tremendous amount of force being put on them. The length of the chain isn't a big factor in whether the chain will snap or not.. just make sure its adjusted properly and you get one that is rated for the engine size of your bike.
    '85 250SX - My first ever trike and my pride and joy
    **Check Out The Whole SX Project Here!!**
    '85 350X - 10:1 Piston, performance cam, '86 engline/carb
    '85 Powervalved Tri-Z - Fully modded - Soon to have a Corey Sprock 310 kit
    '85 250R - Began the modification process. This bike is going to scream! -295cc kit, Ported, Drag intake, 40mil Keihin, VForce reeds, shaved head, PT High Rev pipe, Fat Boy 2 Silencer, +4 Durablue axle, +2 swinger-

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