Old 02-24-06, 10:38 AM
  #4  
AndrewP
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Bikes: Peugeot Hybrid, Minelli Hybrid

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Take a tire off and measure the width between side walls. If that is too hard, cut a U in a piece of card to measure the outside width of the rim and subtract 4 mm. The latter wont give you the exact number but it will be close enough for using Sheldon's table.
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