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Old 09-28-13 | 09:25 AM
  #16  
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TromboneAl
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Joined: Jun 2008
Posts: 2,874
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From: Far, Far Northern California

Bikes: 1997 Specialized M2Pro

And here it is today with a known 39 tooth chainring:



7.8 teeth from one bolt to the next.

And if those two pictures don't convert you to paraffin lubing...
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