If the TT is perpendicular to the ST, you should be able to determine the ST length using trigonometry... Do you have any specific measurements of the bike you're planning on buying ?
Sorry if I missed something.
@Pledger started
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If the TT is perpendicular to the ST, you should be able to determine the ST length using trigonometry... Do you have any specific measurements of the bike you're planning on buying ?
Sorry if I missed something.