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Kawasaki GPz 500S (EX 500R Ninja)

Make Model	Kawasaki GPz 500S / EX 500R Ninja
Year	1999 - 01
Engine	Four stroke, parallel twin cylinders. DOHC, 4 valves per cylinder.
Capacity	498 cc / 30.4 cu-in
Bore x Stroke	74 x 58 mm
Cooling System	Liquid cooled,
Compression Ratio	10.8:1
Lubrication	Wet sump
Engine Oil	Semi-Synthetic, 10W/40
Induction	2x Keihin CVK34 carburetor
Ignition	TCI (Transistor Controlled Ignition)
Spark Plug	NGK, DR9EA
Starting	Electric
Max Power	60 hp / 43.7 kW @ 9800 rpm
Max Power Rear Tyre	54.7 hp @ 9500 rpm
Max Torque	46.1 Nm / 4.7 kg-m @ 8500 rpm
Clutch	Wet, multiple discs, cable operated
Transmission	6 Speed
Final Drive	Chain
Frame	Iron, Double cradle frame
Front Suspension	38mm Telescopic forks
Front Wheel Travel	130 mm / 5.1 in
Rear Suspension	Swinging arm, single shock adjustable for spring preload
Rear Wheel Travel	100 mm / 3.9 in
Front Brakes	Single 270mm disc 2 piston caliper
Rear Brakes	Single disc
Trail	91 mm / 3.5 in
Front Tyre	110/70- 17
Rear Tyre	130/70 - 17
Rake	63°
Trail	91 mm / 3.5 in
Dimensions	Length 2095 mm / 82.4 in Width 700 mm / 30.3 in Height: 1160 mm / 45.6 in
Wheelbase	1435 mm / 56.4 in
Seat Hieght	775 mm / 30.5 in
Dry Weight	176 kg / 388 lbs
Fuel Capacity	15.9 Litres / 4.2 US gal

First launched in 1987, the GPZ500S was Kawasaki's attempt at a modern, lightweight sportsbike. Its parallel twin engine owes much to the GPZ900R of 1984: in many ways, it resembles half a GPZ900R engine. The chassis is dated, but is still capable of being hussled down a fast back road or round a track. The suspension is too soft to offer truly sporting performance, but the brakes work well if kept in good order, and the relaxed steering geometry means predictable handling. In 1994, the GPZ500 received a facelift. New bodywork gave a more up-to-date appearance, while 43cm (17in) wheels allowed modern rubber to be fitted. Wider 37mm (1.5in) front forks stiffened the chassis.