Thread: Chain tension calculations
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Old 12-07-09 | 04:42 PM
  #8  
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Andy_K
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From: Beaverton, OR

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I don't know of any reason to use a 144 BCD crank on a bike like that. You can get a decent 130 MCD crank for $30-$40.

If your old MTB frame doesn't have horizontal drop outs (forward facing -- it doesn't need to be track ends), trade it for an older one that does. That will take care of the chain tension issue. Magic gear (what you want to calculate) isn't a great solution.

Look for this:

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