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Is an inch and 1/8

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Is an inch and 1/8

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Old 09-29-09, 11:40 PM
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Is an inch and 1/8

the same as 28.6? doesn't convert well 28.57500
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Old 09-29-09, 11:58 PM
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Close enough. The labeled tire size frequently doesn't exactly match the measured dimension anyway.
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Old 09-30-09, 12:00 AM
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Not a tire. Sorry should have been more specific FD clamp size. I don't want to pinch the seat tube.
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Old 09-30-09, 01:31 AM
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Rounding error. 28.575mm is within .025mm of what you want or about .001". I doubt that the tubing itself, or the derailleur clamp inside diameter, is held to that accuracy and a coat of paint on the frame tube could be thicker than that.
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Old 09-30-09, 08:15 AM
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Just a consequence of cycling's crazy mixed imperial/metric "standards". Take 1 1/4" (31.75mm) - you'll see in metric equivalent as either 31.7mm (uncommon), 31.8mm, or even as 32mm.
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