Old 08-03-14, 08:15 AM
  #6  
HillRider 
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Join Date: Aug 2005
Location: Pittsburgh, PA
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Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!

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Use the current 7-speed freehub body and replace all but the one chosen cog with spacers arranged to give a good chainline. As noted, unless you have horizontal dropouts, getting the proper chain tension will be a matter of luck, a fortuitous gear choice or using a half link.
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