Moto Collection
Facebook FMD Instagram FMD
Accueil - FMD - Fiches - Blog - FFVE - Livres - Clubs - Musées - Contact FFVE
 Kawasaki - GP ZX
 Back to brands list

Kawasaki D2-492-41-02
Photo ou archives : F-M. Dumas

Capacity : 1100
Model : GP ZX
Production : 1983 - 1984
Category : (R) Street Bike


GP 1100 ZX - 1983

Technical revolution at the end of a long line

The ZX succeeded the GPZ in 1983. It was the last and most spectacular development of the old inline four, which had debuted 11 years earlier with the 900 Z1. It marked the beginning of a new era.

Uni-Trak Suspension

Compared with its predecessor, the GPZ, the ZX was noteworthy for its crisper, more aggressive lines, its steering head fairing and its Uni-Trak rear suspension, which signalled the disappearance of the lateral spring/dampers. The good old eight-valve four wasn't left out of the picture: its power output went up from 103 to 120 hp while keeping the electronic fuel injection already seen on its predecessor.

Fuel Injection Pioneer

In the 1980s, before Honda had launched its CX Turbo and BMW its Series K, Kawasaki had brought out the limited-edition fuel-injected 1000 H and then adopted injection on its 1100 GPZ and ZX as well as on its six-cylinder Z1300. On the road, the power of the ZX engine was particularly impressive: From 6500 to 9500 rpm, it had more pulling power than the famous four. Despite its displacement and its power output, the ZX engine had a noticeable mid-range flat spot and was not particularly nice for low-speed work. As for its road-handling, the ZX was better suited to straight-line riding (where its stability was beyond reproach) than for mountain roads, where its sheer bulk was a brake on its efficiency. On the other hand, the Uni-Trak represented real progress in terms of comfort and handling.


Engine: 1089cc (72.5x66mm) air-cooled four-cylinder four-stroke

Power Rating: 120 hp @ 8750 rpm

Valves: twin overhead-camshafts/2 valves per cylinder

Fuel System; electronic injection

Transmission: 5-speed, chain final drive

Suspension: telescopic forks (front); swing arm with single damper (rear)

Brakes: twin discs (front); disc (rear)

Wheels: 18 inch wire (front); 17 inch (rear)

Weight: 536 lb

Maximum Speed: 150 mph

The Kawasaki GP 1100 ZX marked the limits of development of superpowerful big bikes whose size and weight did not really square with handling.

Motorcycle encyclopedia Moto Passion, realised by François-Marie Dumas, include almost 2000 photos presented with an exhaustive history of the motorcycles exhibited.

This unique collection has been realised with the participation of many specialists. With many thanks in particular to Yves Campion, Michael Dregni, Didier Ganneau, Jean Goyard, Helmut Krackowizer, Michel Montange, Christian Rey, Bernard Salvat, Mick Woollett, etc

One can order here

  • Original cards on paper (in french)
  • High resolution scans or original documents presented and signed with my name.

Please contact me at for conditions and copyright.

© Tous droits réservés
François-Marie Dumas

Accueil - FMD - Fiches Moto Passion - Blog - FFVE - Livres - Clubs - Musées - Contact

Mentions légales