Thread: Bottom bracket, chain line, and what to get. 5 billionth question about this
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Old 02-29-12 | 04:47 PM
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JohnDThompson
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From: Appleton WI

Bikes: Several, mostly not name brands.

42mm is only "perfect" with 120mm OLD hubs. If your frame is 130mm OLD, you'll want the chain to sit a little further out. 45mm sounds about right...
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