Quote:
Originally Posted by Kontact
Those are the same forces at 3 o'clock. But the BB flexes most under the most drivetrain force - which is during the power stroke, not at 6 o'clock.
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The BB is flexing because of the downward pressure from the rider, not the rotational force. If you stuck a motor in the seatpost, the BB would not flex left/right very much, if any.