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Originally Posted by banda
At rest, there is no force straightening out the front wheel. When you get moving, the trailing contact patch exerts a torque about the steering head that that counters any difference between the yaw of the front wheel and the direction of travel.
Front wheels on a grocery cart point any direction they feel like when it's not moving. Once the cart is moving, they point away from the direction of travel. Same thing on a bike.
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this is all very correct, but it has nothing to do with what initiates a turn. And anyone who thinks that a spinning wheel doesnt impart some stability via gyroscopic effect is a fool.
And sorry banda, but I gotta go with kevin on this one, his rep has a smidge more cred than yours
