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  1. #1
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    Chain Length Question (noobie)

    Does anyone know of a clever technique to determine if my chain will have the proper tension *before* cutting it? Here's the specs on my bike:

    Chain stay length: 413mm
    Front chain ring: 34 tooth
    Rear cog: 20 tooth

    I poked around the sheldon brown site but I didn't see anything (perhaps I missed it).

    I just hate cutting a good chain to then find out I cut it to the wrong length. I'd like to know that I have the proper length prior to cutting.

    Thanks,

  2. #2
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    Reputation: olijay's Avatar
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  3. #3
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    Um, that link is for a geared bike, single speed is quite different. Or is it?

  4. #4
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    Wrap it around with the tensioner off (if you're using one) and get it in the ballpark, then just pop off one link at a time. Even if you get it right the first time you're not going to have enough left over to do anything else with it besides make a bracelet or something.
    Opinions are like a**holes: Sometimes they need to be punched in the face and told to STFU.

  5. #5
    Dive Bomber
    Reputation: jackspade's Avatar
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    You can always measure with the chain or rope tighten to the cog and chainring.

  6. #6
    one chain loop
    Reputation: fishcreek's Avatar
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    wow, 413mm chainstay length, this is not a mountain bike isn't it? btw, if the calculation is right, you are pretty close to magic ratio with 46 chain links.

    fixmeup!
    everything sucks but my vacuum cleaner.

  7. #7
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    Um, just put the chain on the bike, and then take the links out. Guaranteed to work every time.

  8. #8
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    Fix Me Up! Did the trick.

    Thanks everybody

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