Gilera Nordwest 350 (1991) vs KTM 640 Duke II (1998-00) vs Honda XL 600LM Limited Edition (1986) vs Honda CB 650SC Nighthawk (1982-83) vs Kawasaki GPz 1100 / ZX1100A-3 (1985) vs Aprilia RS 250 (1994-95) vs Aprilia Tuareg 660 Rally (2025) vs Kawasaki KLX 250 (2018-19) vs Suzuki GSX 1250 FA (2015) vs KTM 1090 Adventure R (2019)

Comparison technical specifications

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Make:	Gilera	KTM	Honda	Honda	Kawasaki	Aprilia	Aprilia	Kawasaki	Suzuki	KTM
Model:	Nordwest 350	640 Duke II	XL 600LM Limited Edition	CB 650SC Nighthawk	GPz 1100 / ZX1100A-3	RS 250	Tuareg 660 Rally	KLX 250	GSX 1250 FA	1090 Adventure R
Years:	1991	1998-00	1986	1982-83	1985	1994-95	2025	2018-19	2015	2019
Engine:	Four stroke, single cylinder, DOHC, 4 valves	Four stroke, single Cylinder. SOHC, 4 valves, engine balancer	Four stroke, single cylinder, SOHC, 4 valve per cylinder, RFVC radial valve	Four stroke, transverse four cylinder, SOHC, 2 valves per cylinder.	Four stroke, transverse fourcylinder, DOHC, 2 valve per cylinder.	Two stroke, 90° V twin-cylinder, with laminar suction and exhaust valve. Separate lubrication with variable automatic mixer	Four stroke, forward facing parallel twin, DOHC with silent chain drive on the right side, four valves per cylinder	Four stroke, single cylinder, DOHC, 4 valve	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder	Four stroke, 75°V-twin cylinder, DOHC, 4 valves per cylinder
Capacity:	348.8 cc /	624.6 cc / 38.1 cu in	589 cc / 35.6 cu-in	626 cc / 38.2 cu-in	1089 cc / 66.4cu-in	249 cc / 15.2 cu in	659 cc / 40.2 cu-in	249 cc / 15.2 cu-in	1254.8 cc / 76.5 cu-in	1050 cc / 64.0 cu-in
Bore x Stroke:	80 x 69.4 mm	101 x 78 mm	100 x 75 mm	59.8 x 55 mm	72.5 x 66 mm	56 x 50.6 mm	81 x 63.93 mm	72 х 61.2 mm	79 x 64 mm	103 x 63 mm
Compression Ratio:	9.5:1	11.5:1	9.0:1	9.0:1	8.9:1	12.0:1 (+/- 0.7)	-	11.0:1	10.5:1	-
Induction:	2x 25mm Dell'Orto carburetor	Mikuni BST 40 carburetor	2 x 28mm piston valve carburetor	4x Keihin 26mm carburetors	Digital fuel injection	2 x Ø34 mm Mikuni 34 SS flat side carburetors	Fuel injection, 52 mm throttle body	DFI® with 34mm throttle body	Fuel Injection	EFI, ride by wire
Max Power:	24 kW / 33ho @ 7500 rpm	40.1 kW / 55 hp @ 7000 rpm	33 kW / 45 hp @ 6500 rpm	50 hp / 37 kW @ 8000	120 hp / 87.6 kW @ 8750rpm	52.9 kW / 72.5 hp @ 11900 rpm	79 hp / 59 kW @ 9250 rpm	21.5 / 15.7 kW @ 7500 rpm	70.5 kW / 96.5 hp @ 7500 rpm	125 hp / 91.2 kW @ 8500 rpm
Final Drive:	Chain	Chain, O-ring 5/8 x 1/4"	Chain	Chain	Chain	Chain, sealed, jointless, DID 520 V6	Chain, with drive ratio: 17/43	Sealed chain	Chain	Chain X-Ring 5/8 x 5/16″
Front Suspension:	41mm Telescopic forks,	WP - 4054 Roma Top adjuster, preload, compression and rebound adjustable	39mm Showa air-adjustable leading-axle forks with dual Syntallic bushings	Showa air-spring, 39mm stanchion tube diameter, brake-actuated hydraulic anti-dive	37mm Kayaba hydraulically activatedair drive abutments for air pressure	Ø40 mm Inverted fork with adjustable rebound and compression damping.	43mm Kayaba USD Off-road tuned fork, fully adjustable	Telescopic fork	Telescopic, oil damped, preload adjustable	48mm WP Suspension Up Side Down
Rear Suspension:	"Power Drive" monoshock	Central shock absorber WP IBS with PRO-LEVER linkage to rear- swing-arm with needle bearing	Pro-link with adjustable rebound damping	Dual Showa shocks, 5-way adjustable spring preload, 4-way adjustable rebound damping	Single air assisted shock adjustablefor reload damping	Magnesium alloy swingarm. Monoshock with resevoir, adjustable extension, compression and spring preloading.	Kayaba Off-road tuned monoshock, fully adjustable,	Uni-Trak® swingarm	Link-type suspension, 7-way adjustable preload, 4-way adjustable rebound	WP-PDS Monoshock
Rear Brakes:	Single 240mm disc	Single 220 mm disc, 1 piston caliper	140mm Drum	180mm Drum	Single 236mm disc1caliper	Single Ø220 mm disc, 2 piston caliper	Single 260 mm disc. Brembo caliper	Single 230mm disc 1 piston caliper	Single 240mm disc	Single 267mm disc 2 piston caliper
Front Tyre:	120/60-17	120/70 - ZR17 58H	3.00-21	3.50 -19	110/90 V18	120/60-17	21 in with inner tube	3.00-21 51P	120/70-ZR17	90/90 R21 Continental TKC 80 Twinduro
Rear Tyre:	160/60 -17	160/60 - ZR17 69H	5.10-17	130/90 -16	130/90 V17	150/60-17	18 in with inner tube	4.60-18 63P	180/55 ZR17	150/70 R18 Continental TKC 80 Twinduro