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The upper triple clamp joins the top of the fork tubes and the handlebar to the frame of a Honda 919. A triple tree ("triple clamp" (US) or "yoke" (UK)) attaches the fork tubes to the frame via steering head bearings, which allow the fork assembly to pivot from side to side, and therefore steer the motorcycle. Most bikes have upper and lower ...
A motorcycle fork connects a motorcycle's front wheel and axle to its frame, typically via a yoke, also known as a triple clamp, which consists of an upper yoke joined to a lower yoke via a steering stem, a shaft that runs through the steering head, creating the steering axis.
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.
Cantilever - An extension of the swinging fork where a triangulated frame transfers swingarm movement to compress shock absorber/s generally mounted in front of the swingarm. The HRD-Vincent Motorcycle is a famous early form of this type of swingarm, though Matchless used it earlier, and Yamaha subsequently.
Wasp was founded in 1964 by engineer and off-road motorcyclist Robin 'Robbie' Rhind-Tutt, [6] who was originally employed by the Ministry of Defence as an engineering apprentice at Boscombe Down. [6] [7] He designed and built a number of off-road motorcycle frames which he used in motocross competitions. [8]
A multi-link suspension is a type of independent vehicle suspension having three or more control links per wheel. [1] These arms do not have to be of equal length, and may be angled away from their "obvious" direction. It was first introduced in the late 1960s on the Mercedes-Benz C111 [2] and later on their W201 and W124 series. [3] [4]
The Model 1, more commonly known as Big 4, was a Norton motorcycle made between 1907 and 1954 in various forms. With 633 cc (38.6 cu in), it was the largest and most powerful side-valve engine in the model range and with plenty of low end torque was mostly used to haul sidecars. It was called Big 4 because it was rated at 4 tax horsepower.
Earlier models therefore required careful maintenance and adjustment of the clearance between frame and mounts using shims. Several improvements were made in 1969. The frame benefitted from additional stiffening and strengthening, [ 8 ] which, together with an improved centre-stand, helped to improve ground-clearance which had been criticised.