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Preload is an engineering term with several meanings. In the general sense, it refers to the internal application of stress to certain mechanical systems. In the general sense, it refers to the internal application of stress to certain mechanical systems.
Preload refers to the force applied to spring component before external loads, such as rider weight, are applied. More preload makes the suspension sag less and less preload makes the suspension sag more. Adjusting preload affects the ride height of the suspension.
The most common form of front suspension for a modern motorcycle is the telescopic fork.Other fork designs are girder forks, suspended on sprung parallel links (not common since the 1940s) and bottom leading link designs, not common since the 1960s.
Preload is the pressure exerted on a spring over the distance it is compressed. A higher preload means a stiffer spring and a lower preload results in a softer spring with more travel. This is true if the coilover uses progressive springs. On coilovers with linear springs preload has no effect on spring rate.
A torsion bar suspension, also known as a torsion spring suspension, is any vehicle suspension that uses a torsion bar as its main weight-bearing spring. One end of a long metal bar is attached firmly to the vehicle chassis; the opposite end terminates in a lever, the torsion key, mounted perpendicular to the bar, that is attached to a ...
4] The complete rear suspension assembly is carried in a steel crossbeam cradle (shown ghosted in the diagram below), which is attached to the vehicle body via four rubber vee-blocks and also carries the differential (blue) and inboard brakes (red). The rear wheels are located transversely by top links and wheel carriers (green) and lower links ...
Plunger suspension on a 1953 BMW R51/3. A swingarm (or swinging arm), originally known as a swing fork or pivoted fork, is a single or double sided mechanical device which attaches the rear wheel of a motorcycle to its body, allowing it to pivot vertically.
Cars of this era normally were rear-wheel drive and did not feature independent suspension for the rear tires (but instead used a live axle). With a live axle, when high torque is applied through the differential, the traction on the right rear tire is lower as the axle naturally wants to turn with the torsion of the drive shaft (but is held ...