Motorcycle fork#Fork tube

With front suspension ( motorcycle ), the front suspension is referred to by motorized two-wheelers. Colloquially, the term motorcycle fork will be used. By 1904, all front suspension on motorcycles were unsprung, from 1907 suspension designs were common.

Control groups

The systematics of the front suspension for motorcycles principle the three control groups:

  • Steering control head
  • Ackermann steering [note 1]
  • Steering wheel hubs [note 2]

Steering control head

" The control steering head is the oldest and most common type of motorcycle steering. " In the control head steering the front wheel is rotatably connected to the steering tube to the frame; this allows the steering of the motorcycle. The first control steering head can be seen on the trolley by Karl Drais (1817 ). Apart from the front fork springs and shock absorbers are separate components of the front suspension. In the control head steering a distinction in forks and swingarm.

Types of forks

Motorcycle forks are usually carried out with two arms, as an exception in the series production is the Imme. [Note 3] [note 4]

  • Fork (1905-1909)
  • Pendulum fork (1905-1923)
  • Leaf Spring Fork (1905-1946)
  • Keystone fork (1913-1949)
  • Telescopic fork ( 1935 - )
  • Hossack fork (1980 - )
  • Telelever fork (1993 - )
  • Duolever (2004 -)

Leaf Spring Fork (Indian)

Pendulum fork ( Triumph)

Keystone fork ( Triumph)

Telescopic fork ( BMW)

Telelever (BMW)

Duolever (BMW)

Types of swing

  • Short wheel (from 1904); referred to as the swinging lever fork in the 1950s; including the Springer fork ( from 1929)
  • Halblange pushed rocker ( from 1970 ); inter alia, Hercules K 125 BW, motorcycle with sidecar
  • Long arm (from 1904); referred less often than long swinging fork

Pushed short arm ( Peugeot)

Springer fork ( Harley- Davidson)

Halblange pushed rocker ( Ural )

Pushed long arm (BMW)

Pulled long arm (FN)

Hub-center steering Head tube Dandy horse Yamaha GTS 1000 Italjet Dragster
583772
de