Swingarm
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A swingarm, 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.
Plunger suspension on a 1953 BMW R51/3
Yamaha XJ650 Maxim has a driveshaft forming the left swingarm
Moto Guzzi's CRDS variant of the parallelogram
BMW's Paralever rear suspension on a 2015 R1200RT
Bicycle frame
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A bicycle frame is the main component of a bicycle, onto which wheels and other components are fitted. The modern and most common frame design for an upright bicycle is based on the safety bicycle, an
Swingarm
…rider, acceleration, and braking. Originally motorcycles had no rear suspension, as their frames were little more than stronger versions of the classic diamond frame of a bicycle. Many types of suspension were tried, including Indian's leaf spring suspended swingarm, and Matchless's cantilevered coiled-spring swingarm…
A steel hardtail mountain bike frame produced by Rocky Mountain Bicycles
The 'diamond' frame's central, horizontal top bar forces the rider to swing a leg over the bicycle's seat.
A Triumph step-through, ladies', or open frame
Dursley Pedersen bicycle circa 1910