Kawasaki Z 550F (1979) vs BMW R 75/6 (1973-76) vs Kawasaki ZX-7R Ninja (1998-99) vs BMW F 800GS Adventure (2015) vs Kawasaki Zephyr 400 X (1998-00) vs Kawasaki Z 1000 (2009)

Comparison technical specifications

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Make:	Kawasaki	BMW	Kawasaki	BMW	Kawasaki	Kawasaki
Model:	Z 550F	R 75/6	ZX-7R Ninja	F 800GS Adventure	Zephyr 400 X	Z 1000
Years:	1979	1973-76	1998-99	2015	1998-00	2009
Engine:	Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder.	Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder	Four stroke parallel twin cylinder. DOHC, 4 valves per cylinder	Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder.
Capacity:	553 cc / 33.7 cu-in	745 cc / 45.5 cu in.	748 cc / 45.6 cu-in	798 cc / 47.7 cub. in.	399 cc / 24.4 cu-in	953 cc / 58.1 cu-in
Bore x Stroke:	58 x 52.4 mm	82 x 70.6 mm	73 x 44.7 mm	82 x 75.8 mm	55 х 42 mm	77.2 x 50.9 mm
Compression Ratio:	9.5:1	9.0:1	11.5:1	12.0:1	10.3:1	11.2:1
Induction:	4x 22mm TK	2 x Bing constant depression carbutetors	4x 38mm Keihin CVKD carburetors	Electronic intake injection, ∅45mm throttle bodies	4X Keihin CVK30 carburetors	4x 38mm throttle bodies
Ignition:	CDI	Battery ignition	Digital	Digital CDI	Full transistor	Digital
Starting:	Electric	Electric	Electric	Electric	Electric	Electric
Max Power:	58 hp / 43.2 kW @ 9000 rpm	36.8 kW /50 hp @ 6200 rpm	111.9 hp / 83.4 kW @ 11700 rpm	62.5 kW / 85 hp @ 7500 rpm	49 hp / 36.8 kW @ 11000 rpm	127 hp / 92.7 kW @ 10000 rpm
Max Torque:	35.5 ft-lb / 48.1 Nm @ 7000 rpm	60 Nm / 6.1 kgf-m / 44 ft lb @ 5000 rpm	7.7 kgf-m / 55.6 lb-ft @ 9500 rpm	80 Nm / 8.2 kgf-m / 59 lb-ft @ 5750 rpm	3.1 kgf m / 22.4 lb-ft @ 10500 rpm	95.6 Nm / 70.5 ft/ lbs @ 8000 rpm
Transmission:	6 Speed	4 Speed	6 Speed	6 Speed	6 Speed	6 Speed
Final Drive:	Chain	Shaft	Sealed chain	Chain	Chain	Chain
Front Suspension:	36mm Telescopic forks	Telescopic hydraulic forks	43mm inverted cartridge fork, adjustable preload, fully adjustable compression and rebound damping	43mm Marzocchi upside down forks	Telescopic forks	41mm cartridge fork, rebound, spring preload adjustable
Rear Suspension:	Dual shock, 5-way preload	Long swinging arm with strut. 125mm wheel travel	Piggy-back reservoir rear shock offers adjustable compression and rebound damping, preload and ride height to match a wide range of operating conditions.	Double strut swing arm aluminium coast in one piece	Dual shocks	Uni-Trak, rebound spring preload adjustable
Front Brakes:	2X 250mm disc	∅200mm Drum	2x 320mm discs 6 pistons calipers	2 x ∅300mm discs, 4 piston calipers, ABS	2x discs	2x 300mm 4 piston calipers
Rear Brakes:	Single disc	∅200mm Drum	Single 230mm disc 2 piston caliper	Single ∅265mm disc, 2 piston caliper, ABS	Single disc	Single 292mm disc 2 piston caliper
Front Tyre:	3.25-19	3.25 - S19	120/70 ZR17	90/90 - 21 54V	110/80-17	120/70 R17
Rear Tyre:	3.75-18	4.00 - S18	190/50 ZR17	150/70 - 17 69V	140/70-18	190/50 R17
Fuel Capacity:	14 Litres / 3.6 US gal	24 Litres / 6.3 US gal	18 Litres / 4.7 US gal	24 Litres / 6.3 US gal.	14 Litres / 3.6 US gal	18 Litres / 4.8 US gal