Thread: Frame
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Old 07-31-17, 08:15 AM
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center of BB along Seat tube is commonly called Frame Size

Top tube can be divided up by a plumb line thru the BB, set back behind, reach, ahead of that line.
that gives some idea of seat tube angle ... top tube length is just a total , center to center..

then chain stay length.. this is not saying anything about the fork

that's a separate set of answers.

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