Old 02-20-13 | 06:59 AM
  #8  
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loubapache
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Joined: Jul 2008
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From: Western MI

Bikes: 2015 Windsor Oxford; 2012 Trek T900; 2008 Iron Horse Commuter; 1999 Specialized Stumpjumper M2 Pro; 1999 Kona Lava Dome; 1992 Trek 520 Tour; 1980 Fuji Grand Tour SE; 1973 Raleigh LTD-3; 1956 Robin Hood; 198x Worksman Industrial Trike

From 17T to 15T, it is like going from 8 MPH to 9 MPH so it won't be 12 MPH.

If there is 1/2" of dropout left, then 2 fewer teeth is just about right without taking out links.
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