Old 02-24-06, 05:34 PM
Lord Chambers
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What exactly am I measuring? A rim is shaped like a U, so am I just trying to measure the bottom of the U, or the whole U, the circumference if you will?

The reason I ask is because I've got a cross bike that has worn 32s and I mostly use it to commute, so I figure I should get a road tire. Road tires are often in 20's and 23's, not 32.
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