Tip for finding chainline- Mtbr.com
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  1. #1
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    Tip for finding chainline

    Hey all. Just wanted to share this tip I found for determining your chainline.

    Hang your bike by the front wheel then loop the chain over the chainring and use it as a plumbob. It will point right to where your rear cog should go.

    Pretty cool!
    Robb
    Specialized Rockhopper Comp
    Canondale Synapse w/DuraAce goodness

  2. #2
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    http://www.sheldonbrown.com/chainline.html

    After reading it and going through it, still found that the best way is to get the hub and crank all thrown on the bike with a chain. Then determine "chainline" from trial and error. It worked for me going from a 113bb symmetrical to a 116 right+5 offset bb. I was not able to figure that out from the chainline guide. Some things, as opposed to busting our your math skills and a rule, you just gotta get in there and do it.
    Creative Producer, Will of the Sun, Platform Pedal Shootout 1M+ views WoS

  3. #3
    AZ
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    Only works if your bike hangs plumb .

  4. #4
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    ^^^
    Ahhhh. Yeah true. Just sounded like it'd be worth a shot.

    I did the trial and error method but I'll check it with Sheldon's math method. Yuk... math.....
    Robb
    Specialized Rockhopper Comp
    Canondale Synapse w/DuraAce goodness

  5. #5
    Bicycle Addict
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    I bet that would work, I don't see how it wouldn't hang plumb bob. At least it would get it real close, closer than you could with the naked eye.
    The unexamined life is not worth living - Socrates
    Bearded Women Racing

  6. #6
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    Do the math. Very easy, why not get it right the first time.

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