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The basic motorcycle swingarm is a quadrilateral, with one short side connected to the motorcycle's frame with bearings so that it can pivot. [14] The other short side is the rear axle around which the rear wheel turns. The long sides are connected to the motorcycle's frame or rear sub-frame with one or two shocks with coil-over springs.
A motorcycle fork is the portion of a motorcycle that holds the front wheel and allows one to steer. For handling, the front fork is the most critical part of a motorcycle. The combination of rake and trail determines how stable the motorcycle is. The 'fork' on a motorcycle consists of multiple components.
The risk of skidding increases if the motorcyclist is braking or changing direction. This is due to the fact that most of the braking and steering control are through the front wheel, while power is delivered through the rear wheel. [50] During maintenance, the choice of material can be inadequate for motorcycles.
How to Restore Your Motorcycle. Photographs by Jeff Hackett (Second edition, illustrated ed.). Motorbooks International. p. 109. ISBN 978-0-76-033772-1. One of the weirdest and worst rear suspension systems of all time is the infamous Triumph Sprung Hub—one of the first devices to carry a cast-in warning.
Unsprung mass is a consideration in the design of a vehicle's suspension and the materials chosen for its components. Beam axle suspensions, in which wheels on opposite sides are connected as a rigid unit, generally have greater unsprung mass than independent suspension systems, in which the wheels are suspended and allowed to move separately.
The Bendix Company built a rear-wheel steering bicycle, and the U.S. Department of Transportation commissioned the construction of a rear-wheel steering motorcycle: both proved to be unrideable. Rainbow Trainers, Inc. in Alton, Illinois, offered US$5,000 to the first person "who can successfully ride the rear-steered bicycle, Rear Steered ...
The Butler Petrol Cycle was a three-wheeled vehicle, with the rear wheel directly driven by a 5 ⁄ 8 hp (0.47 kW), 40 cc (2.4 cu in) displacement, 2 + 1 ⁄ 4 in × 5 in (57 mm × 127 mm) bore × stroke, flat twin four-stroke engine (with magneto ignition replaced by coil and battery) equipped with rotary valves and a float-fed carburettor ...
A rear motorcycle tyre for street use. A motorcycle tyre (spelt tire in American English) is the outer part of motorcycle wheel, attached to the rim, providing traction, resisting wear, absorbing surface irregularities, and allowing the motorcycle to turn via countersteering.