Old 03-14-13, 11:49 AM
  #12  
fietsbob
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True, tcs, but [my Brompton] putting a 54t crankset and a 13t on the AW3,
puts the range those 3 gears operate in , up significantly..

when I kick down my Mountain drive to a 21t equivalent, and the % remain the same
but the range is lower.
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