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Front suspension of a race car — the caster angle is formed by the line between upper and lower ball joint An example of a chopper with a raked fork at an extreme caster angle. The caster angle [1] or castor angle [2] is the angular displacement of the steering axis from the vertical axis of a steered wheel in a car, motorcycle, bicycle ...
In motorcycles, the steering axis angle is measured from the vertical and called the caster angle, rake angle, or just rake; [5] a 0° rake is therefore vertical. For example, Moto Guzzi [6] offers: a 2007 Breva V 1100 with a rake of 25°30′ (25.5 degrees) a 2007 Nevada Classic 750 with a rake of 27.5°
touring bicycles with head angles between 72° and 73° and trail between 43 mm and 60 mm; racing bicycles with head angles between 73° and 74° and trail between 28 mm and 45 mm; track bicycles with head angles of 75° and trail between 23.5 mm and 37 mm. However, these ranges are not hard and fast.
Simple approximation for designing Ackermann geometry. A simple approximation to perfect Ackermann steering geometry may be generated by moving the steering pivot points [clarification needed] inward so as to lie on a line drawn between the steering kingpins, which is the pivot point, and the centre of the rear axle. [3]
English: The Trail of Tears map shows one of the most shameful episodes of American history, today preserved as the Trail of Tears National Historic Trail. Date 30 April 2017
The primary angles are the basic angle alignment of the wheels relative to each other and to the car body. These adjustments are the camber, caster and toe.On some cars, not all of these can be adjusted on every wheel.
A positive caster angle aids in directional stability, as the wheel tends to trail, but a large angle makes steering more difficult. Curves described by the rear wheels of a conventional automobile. While the vehicle moves with a constant speed its inner and outer rear wheels do not.
With a Saxon-Motodd fork, the trail and caster angle increases during braking instead of decreasing as with traditional telescopic forks. [5] BMW's boxer twins have been equipped with Telelever forks since 1994, but some newer boxers like the BMW R nineT have reverted to conventional telescopic forks for aesthetic and packaging reasons.