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Difference between revisions of "Counter steering"
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→Bikes vs automobiles
(New page: [[Image:Countersteer response.JPG|thumb|290px|Graphs showing the lean and steer angle response of an otherwise uncontrolled bike, traveling at a forward speed in its stable rangle (6 m/s),...) |
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Bikes steer by controlling roll angle. However roll angle is not directly manipulated by the handlebars in the same way as steer angle in an automobile. Rather it is influenced indirectly by applying roll moments to the machine. These roll moments in turn come from side forces at the wheels, which are closely related to steering torques. Thus the bike is a "force-controlled" system in which the actual position of the handlebars is free. | Bikes steer by controlling roll angle. However roll angle is not directly manipulated by the handlebars in the same way as steer angle in an automobile. Rather it is influenced indirectly by applying roll moments to the machine. These roll moments in turn come from side forces at the wheels, which are closely related to steering torques. Thus the bike is a "force-controlled" system in which the actual position of the handlebars is free. | ||
The lean of a bike's wheels causes a turning force in the direction of the lean, called | The lean of a bike's wheels causes a turning force in the direction of the lean, called camber thrust, which enables the bike to negotiate turns with substantially less steering angle of the front wheel than an automobile for the same turn radius.<ref name="Foale">{{cite book | ||
| title = Motorcycle Handling and Chassis Design | | title = Motorcycle Handling and Chassis Design | ||
| edition = Second | | edition = Second | ||