Kawasaki KDX 250 (1981-82) vs Kawasaki W 650 (1999-01) vs Kawasaki ZN 1300 Voyager (1983-85) vs Suzuki GS 125ES (1991) vs Kawasaki AR 80 (1981-83) vs Kawasaki Z 250LTD (1986-87) vs Kawasaki ZX-7R Ninja (2002-03) vs Kawasaki AR 125 (1984-85) vs Kawasaki Ninja 1000SX (2020)

Comparison technical specifications

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Make:	Kawasaki	Kawasaki	Kawasaki	Suzuki	Kawasaki	Kawasaki	Kawasaki	Kawasaki	Kawasaki
Model:	KDX 250	W 650	ZN 1300 Voyager	GS 125ES	AR 80	Z 250LTD	ZX-7R Ninja	AR 125	Ninja 1000SX
Years:	1981-82	1999-01	1983-85	1991	1981-83	1986-87	2002-03	1984-85	2020
Engine:	Two stroke, single cylinder, reed valve	Four stroke, parallel twin cylinder, SOHC, 4 valve per cylinder	Four stroke transverse six cylinder. DOHC, 4 valves per cylinder	Four stroke, single cylinder, OHC	Two stroke, single cylinder, disc valve.	Four stroke, single cylinder, SOHC, 2 valve per cylinder	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Two stroke, single cylinder, disc valve.	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder
Capacity:	249 cc / 15.2 cu-in	676 cc / 41.2 cu-in	1286 cc / 78.5 cub in	124 cc / 7.6 cu in	79.4 cc / 4.8 cu-in	248 cc / 15.1 cu-in	748 cc / 45.6 cu-in	124 cc / 7.5 cu-in	1043 cc / 63.6 cu-in
Bore x Stroke:	70 x 64.9 mm	72 x 83 mm	62 x 71 mm	57 x 48.8 mm	49 x 41.6 mm	70 x 64.mm	73 x 44.7 mm	55 х 51.8 mm	77.0 x 56.0mm
Cooling System:	Air cooled	Air cooled	Liquid cooled	Air cooled	Air cooled	Air cooled	Liquid cooled	Liquid cooled	Liquid cooled
Induction:	36mm Mikuni carburetor	2x Keihin CVK34 carburetor	Mikuni fuel injection	Carburetor	Mikuni VM18SC Carburetor	Carburetor	4x 38mm Keihin CVKD carburetors	24mm Mikuni carburetor	DFI with four 38mm Keihin throttle bodies, oval sub-throttles
Ignition:	CDI	Digital with K-TRIC	Battery powered transistorized	Coil pack	Capacitor discharge	CDI	Digital	Capacitor discharge	TCBI with digital advance
Starting:	Kick	Electric	Electric	Electric	Kick	Electric	Electric	Kick	Electric
Max Power:	33 hp / 24.6 kW @ 7000 rpm	50 hp / 36.5 kW @ 5000 rpm	96.9 kW / 130 hp @ 8000 rpm	10.2 kW / 14 hp @ @ 9500 rpm	10.2 hp / 7.5 kW @ 8500 rpm	27 hp / 20.1 kW@ 10000 rpm	111.9 hp / 83.4 kW @ 11700 rpm	22 hp / 16.4 kW @ 9500 rpm	104.5 kW / 140 hp @ 10000 rpm
Max Torque:	3.5 kgf-m @ 6500 rpm	56 Nm / 5.71 kg-m @ 5500 rpm	118 Nm / 12.03 kgf-m / 87 ft. lbs @ 6500 rpm	9.75 Nm / 0.99 kgf-m / 7.2 lb-ft	8.53 Nm @ 8000 rpm	21 kgf-m @ 8500 rpm	7.7 kgf-m / 55.6 lb-ft @ 9500 rpm	1.7 kgf-m / 12.2 lb-ft @ 8000 rpm	111 Nm / 82 lb-ft @ 8000 rpm
Transmission:	6 Speed	5 Speed	5 Speed	5 Speed	6 Speed	5 Speed	6 Speed	6 Speed	6 Speed
Final Drive:	Chain	Chain	Shaft	Chain	Chain	Chain	Sealed chain	Chain	Sealed Chain
Front Suspension:	Telescopic forks	39 mm telescopic fork	41mm Kayaba air adjustable forks	Telescopic forks	Telescopic fork	Telescopic forks	43mm inverted cartridge fork, adjustable preload, fully adjustable compression and rebound damping	30mm Leading telescopic	41 mm inverted fork with compression and rebound damping and spring preload adjustability
Rear Suspension:	Mono Shock	Twin shocks with 5-way spring preload adjustment	Dual Kayaba shocks, fully adjustable.	Dual shocks	Swingarm with monoshock	Dual shocks	Piggy-back reservoir rear shock offers adjustable compression and rebound damping, preload and ride height to match a wide range of operating conditions.	Rising rate Uni-trek linkage 5-way preload.	Horizontal Back-link, gas-charged rear shock with rebound damping and spring preload adjustability
Front Brakes:	Drum	Single 300mm disc 2 piston caliper	2x 266mm discs 1 piston caliper	Single 220mm disc	Single 232mm disc	Single disc	2x 320mm discs 6 pistons calipers	Single 232mm disc 1 piston caliper	2x 300mm discs 4 piston caliper
Rear Brakes:	Drum	160mm Drum	Single 296mm disc 1 piston caliper	130mm drum	130 drum	Drum	Single 230mm disc 2 piston caliper	130 drum	Single 250mm disc 1 piston caliper
Front Tyre:	3.00-21	100/90-19	130/90-16	2.75-18	2.50–18	90/90-19	120/70 ZR17	2.75-18	120/70ZR17M/C (58W)
Rear Tyre:	5.10-18	130/80-18	150/90-15	3.00-18	2.75–18	120/90-16	190/50 ZR17	3.00-18	190/50ZR17M/C (73W)
Fuel Capacity:	12.5 Litres / 3.3 US gal	15 Litres / 3.96 US gal	27 Litres / 7.1 US gal	12 Litres / 3.2 US gal / 2.6 Imp gal	9.8 Litres / 2.1 US gal	12 Litres / 3.1 US gal	18 Litres / 4.7 US gal	11.5 Litres / 3.0 US gal	19 Litres / 5.0 US gal