Quote:
Originally Posted by cachagua
Sounds like you're suggesting we leave frame flex induced by non-drive forces out of the discussion?
That's fine with me. Originally, we were trying to figure out whether or not frame flex subtracts from your efforts to move the bike forward -- and for purposes of that question, any other behavior of the bike, caused by any other force applied to it, is at best a distraction.
So where are we with that original question?
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If it has anything to do with pedaling, that's what we're talking about. If you find a way to get the head tube to flex, probably not what we're talking about.
In terms of subtracting from forward movement, you should suggest a mechanism where a one way drivetrain (freewheel) can make energy go upstream. If not upstream, to where?