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Old 09-08-16 | 11:27 AM
  #2  
bulldog1935
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Joined: Jul 2016
Posts: 2,717
Likes: 9
From: downtown Bulverde, Texas

Bikes: '74 Raleigh International utility; '98 Moser Forma road; '92 Viner Pro CX upright

here's sheldon's gear calculator with your IGH already built into the algorithm.
Sheldon Brown's Bicycle Gear Calculator

I turned my daughter's Nexus 8 from city gears to touring gears by adding 2 teeth to the drive cog and subtracting 2 teeth from the chainring - kept the exact same chain length. Something to consider.
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