The Kawasaki Ninja 600R (North America) or GPZ 600R ( Europe 1985-90) and GPX 600R (Europe 1988-97) is a

sport bike A sport bike (sports motorcycle, or sports bike) is a motorcycle designed and optimized for speed, acceleration, braking, and cornering on asphalt concrete race tracks and roads. They are mainly designed for performance at the expense of comfor ...

motorcycle A motorcycle (motorbike, bike, or trike (if three-wheeled)) is a two or three-wheeled motor vehicle steered by a handlebar. Motorcycle design varies greatly to suit a range of different purposes: long-distance travel, commuting, cruising ...

made by Kawasaki ZX600 line of

s sold in North America. In Europe both models were different in every country with unlike colors and designations. With minor variations over the years, in 1988 the GPX model received changes like a new double cradle frame, a different anti-dive system that Kawasaki called ''Electronic Suspension Control System'' (ESCS), meaning to improve the Automatic Variable Damping System (AVDS) suspension from the original GPZ. The GPX had more power (84 hp against 76 in the GPZ) and a higher top speed (140 mph versus GPZ's 135 mph).

References

Ninja 600R Sport bikes Motorcycles introduced in 1985 {{Motorcycle-stub