Kawasaki GPz 1100-B1 / Z 1100GP (1981) vs Kawasaki GT 550 (1982-) vs Kawasaki GPz 550 / Z 550GP (1981-82) vs Kawasaki GPz 400F / Z400GP (1984) vs Kawasaki VN 1500 Vulcan Drifter (1999-01)

Comparison technical specifications

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Make:	Kawasaki	Kawasaki	Kawasaki	Kawasaki	Kawasaki
Model:	GPz 1100-B1 / Z 1100GP	GT 550	GPz 550 / Z 550GP	GPz 400F / Z400GP	VN 1500 Vulcan Drifter
Years:	1981	1982-	1981-82	1984	1999-01
Engine:	Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder.	Four stroke, transverse four cylinder, DOHC, 2 Valves per cylinder.	Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder.	Four stroke, transverse four cylinder, DOHC, 2 Valve per cylinder.	Four stroke, 50° V-Twin, SOHC, 4 valves per cylinder
Capacity:	1089 cc / 66.4 cu-in	553 cc / 33.7 cu-in	553 cc / 33.7 cu-in	399 cc / 24.3 cu-in	1470 cc / 89.7 cu-in
Bore x Stroke:	72.5 x 66 mm	58 x 52.4 mm	58 x 52.4 mm	52 х 47mm	102 x 90 mm
Cooling System:	Air cooled	Air cooled	Air cooled	Air cooled	Liquid cooled
Compression Ratio:	8.9:1	9.5:1	10.0:1	9.5:1	9.0:1
Induction:	Bosch electronic fuel injection	4x TK K26V mm carburetors	4x 22mm Teikei constant vacuum - main jets #94	4 x 21mm Teir-Kei carburetors	Digital Fuel Injection with dual 36mm throttle bodies
Ignition:	Electronic, CDI	CDI	CDI	CDI	Digital
Starting:	Electric	Electric	Electric	Electric	Electric
Max Power:	108 hp / 81 kW @ 8000 rpm	58 hp / 43.2 kW @ 9000 rpm	58 hp / 42.3 Nm @ 9000 rpm	51 hp / 38 kW @ 11500 rpm	64 hp / 46.7 kW @ 4700 rpm
Max Torque:	95.1 Nm / 70.2 lb-ft @ 7000 rpm		35.5 lb-ft / 48.1 Nm @ 8000 rpm	34.3 Nm / 25.2 lb-ft @ 8500 rpm	112 Nm / 82.6 lb-ft @ 3000 rpm
Transmission:	5 Speed	6 Speed	6 Speed	6 Speed	5 Speed
Final Drive:	Chain	Shaft	#530 O-ring chain	Chain	Shaft
Front Suspension:	Telescopic coil/air spring forks	Telescopic forks	Telescopic forks	Telescopic forks	41mm cartridge fork
Rear Suspension:	Swinging arm with 2 dampers adjustable for preload and damping	Swinging arm	Dual shocks, Swinging arm	Swing arm	Dual air assisted shock absorbers with 4-way rebound damping adjustment
Front Brakes:	2x 270mm discs 1 piston calipers	2x Disc	2X 260mm disc	Single 236mm disc	2x 320mm discs 6 piston calipers
Rear Brakes:	Single 270mm disc 1 piston caliper	Drum	Single 260mm disc	Single 140mm drum	Single 270mm disc 2 piston caliper
Front Tyre:	3.25-18	100/90-19	3.25 H19	90/90-19	130/90R-16
Rear Tyre:	4.25-18	120/90-18	3.75 H18	110/90-18	150/80R-16
Fuel Capacity:	21.4 Litres / 5.5 US gal	22 Litres / 5.8 US gal	15 Litres / 3.9 US gal	15 Litres / 3.9 US gal	18.9 Liter / 5.0 US gal