Old 09-13-06 | 09:57 PM
  #24  
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spunkyruss
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From: Hatfield, PA

Bikes: '64 Schwinn Traveler, '73 Astra Tour de France, '79 Fuji Gran Tourer, '86 Dahon folder, '94 Specialized Hardrock, '95 GT Timberline, 2005 Jamis Aurora

If you can accurately measure the circumference of the tube then you can calculate the diameter -just divide the circumference by pi.
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