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The term scrub radius derives from the fact that either in the positive or negative mode, the tire does not turn on its centerline (it scrubs the road in a turn) and due to the increased friction, more effort is needed to turn the wheel. Large positive values of scrub radius, 4 inches/100 mm or so, were used in cars for many years.
When braking, depending on the location of the combined center of mass of the bike and rider with respect to the point where the front wheel contacts the ground, and if the front brake is applied hard enough, bikes can either: skid the front wheel which may or not result in a crash; or flip the bike and rider over the front wheel.
Power oversteer is the process of applying power through the throttle pedal while turning to break the traction forces on the driving wheels. Doing this causes the vehicle to slide, and is also known as a powerslide, and the vehicles movement is primarily based on the non-driving wheels (usually the steering wheels).
Figure 1 Hard wheel rolling on and deforming a soft surface, resulting in the reaction force R from the surface having a component that opposes the motion. (W is some vertical load on the axle, F is some towing force applied to the axle, r is the wheel radius, and both friction with the ground and friction at the axle are assumed to be negligible and so are not shown.
Victory Motorcycles was an American motorcycle brand based in Spirit Lake, Iowa, United States.It began selling its vehicles in 1998, and began winding down operations in January 2017 to be succeeded by the revived traditional American motorcycle brand Indian, which are both (since 2011) owned by parent company Polaris Industries.
The greatest effort is required from a locomotive when starting. At this time, if the engineer applies too much power to the wheels (i.e., for a steam locomotive, the engineer opens the regulator too far) the turning force applied to the wheel will greatly exceed the opposing friction force affected by the surface of the rail, and the wheel will turn without being able to move the train forward.
For A and B to face each other, A has to look East but B not to the West. If B were to look West, she would see a bear eyeing her as his next meal. For A and C to face each other, both would have to face North. To "keep to a bearing" is not, in general, the same as going in a fixed direction along a great circle.
Turning the steering wheel displaced the bogies to the left or right inducing a modest turn. Further turning of the wheel engaged braking on one side or the other. The Light Tank Mk VII Tetrarch used a similar system but the front wheels and two middle wheels on either side pivoted to induce the warp. [7]