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Old 08-20-09, 11:15 AM
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If you have 3 identicle bikes with the exception of frame size it goes like this:

Anything in the 54-ish to 60-ish cm range is the control group.

Exceptionaly small bikes: add $50
Control group: $300 (as an example)
Exceptionaly big bikes: subtract $50

If you have 54cm thats worth $100 an exceptionaly smalle bike wouldnt neccessarily be worth $150 or 50% but i think you get the general idea.
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