Thread: I have no idea...
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Old 07-14-07 | 07:04 PM
  #6  
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shogun17
Sheldon Brown's posse
 
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From: Oz-tray-lee-ah

Bikes: BMC SL01, XtC, Rhythm GX and a frankenstein avalanche 2.0

42:16 gives 69GI (that is 42 teeth on the front and 16 on the back, just for reference)

44:16 gives 72.3GI

I run 42:17 for the commute and 45:15/16 on the road.

These are with 700x23c tyres.
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