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To the right a black Sportster with twin shocks Harley Hydra Glide converted to a chopper as seen in the 1969 film Easy Rider, with 1950s hard-tail frame painted red Harley-Davidson Heritage Softail with chrome swingarm shaped like a triangle Rear suspension on a Vincent with shocks visible under the seat, introduced in late 1920s Yamaha XT250 ...
The springer fork is an early type of leading link fork. A springer fork does not have the suspension built into the fork tubes, but instead has it mounted externally, where it may be integrated into the triple clamp. This style of fork may be found on antique motorcycles or choppers, and is available today on Harley-Davidson's Softail Springer.
Immediately before and after World War II, the plunger suspension, in which the axle moved up and down two vertical posts, became commonplace. In the latter, the movement in each direction was against coiled springs. Some manufacturers, such as Greeves, used swingarm designs for the front forks, which were more robust than telescopic forks.
Most motorcycles today use telescopic forks for the front suspension. The forks can most easily be understood as simply encased long coil springs with hydraulic damping of excess spring energy. They allow the front wheel to react to imperfections in the road while isolating the rest of the motorcycle from that motion. Telescopic forks on a 1969 BMW
1968 BMW R60US with conventional telescopic fork Telescopic fork in upside down design, with stanchions at the bottom.. Conventional telescopic forks invariably have a pair of fork tubes, or "stanchions", at the top, clamped to a triple tree (also called a triple clamp or a yoke), and the sliders are at the bottom, attached to the front wheel spindle.
In the past, mountain bikes had a rigid frame and a rigid fork. In the early 1990s, mountain bikes started to have front suspension forks. This made riding on rough terrain easier on a rider's arms. The first suspension forks had about 1 1 ⁄ 2 to 2 inches (38 to 50 mm) of suspension travel. Soon after, some frame designers came out with a ...