Quote:
Originally Posted by Kontact
The frame isn't flexing because we are stepping on it, it if flexing because we are trying to move the rear wheel so hard that tension in the chain is enough to pull the BB off center.
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Seems like most of the flex is the BB area moving left/right in relation to the centerline of the bike/frame because of the downward force of the pedals...not because of the rotational force...