Old 09-15-05, 03:17 AM
  #3  
MichaelW
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Sram used to make a 7 speed hub with 3 cogs.
Schlumpf make an internal gear for the front part of transmission that is used with hub gears. You dont need a chain tensioner with this one.
http://www.schlumpf.ch/md_engl.htm
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