where does one measure from to on top tube and seat tube ?
is it centre of the headtube to the centre of seat tube for the top tube measurement and top of seat tube to middle of bb for the seat tube ?
@dicki started
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where does one measure from to on top tube and seat tube ?
is it centre of the headtube to the centre of seat tube for the top tube measurement
and top of seat tube to middle of bb for the seat tube ?