KTM 640 Duke II (1998-00) vs BMW F 750GS (2019) vs Kawasaki ZX-4 F3 (1988) vs Suzuki GS 750E II (1980) vs SYM Jet4 125 (2014) vs Honda DN-01 (2008-10) vs Honda CRF 230L (2008-09) vs Aprilia 125 Classic (1995-97)

Comparison technical specifications

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Make:	KTM	BMW	Kawasaki	Suzuki	SYM	Honda	Honda	Aprilia
Model:	640 Duke II	F 750GS	ZX-4 F3	GS 750E II	Jet4 125	DN-01	CRF 230L	125 Classic
Years:	1998-00	2019	1988	1980	2014	2008-10	2008-09	1995-97
Engine:	Four stroke, single Cylinder. SOHC, 4 valves, engine balancer	Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder	Four stroke, transverse four cylinder, DOHC, 4 Valve per cylinder.	Four stroke, transverse four cylinders, DOHC, 2 valve per cylinder.	Single cylinder, 4-stroke, SOHC	Four stroke, 52°V-Twin, SOHC. 4 valve per cylinder	Four stroke single cylinder, SOHC, 4 valves	Single cylinder, two-stroke
Capacity:	624.6 cc / 38.1 cu in	853 cc / 52 ci-in	399 cc / 24.3 cu-in	748 cc / 45.6 cu in	124.6 cc / 7.6 cub in.	680 cc / 41.4 cu-in	223 cc / 13.6 cu-in	124.8 cc / 7.5 cu in
Compression Ratio:	11.5:1	12.7:1	11.5:1	8.7:1	10.5:1	10.0:1	9.0:1	12.5:1
Induction:	Mikuni BST 40 carburetor	Electronic intake injection	4x Keihin CVKD30 carburetors	4 x Mikuni VM26SS carburators	Electronic	PGM-F1 Electronic fuel injection40mm throttle bedews	Single 30 mm CV carb	Dell'Orto PHBH 28 RD carburetor
Ignition:	Kokusan contactless DC-CDI ignition with advanced system	Knock control and oxygen sensors.	CDI	Battery, coil	CDI	Digital transistorized with electronic advance	CD with electronic advance and lighting coil	CDI
Starting:	Electric & kick	Electric	Electric	Electric & kick	Electric & kick	Electric	Electric & Kick	Electric
Max Power:	40.1 kW / 55 hp @ 7000 rpm	77 hp / 57.4 kW @ 7500rpm	59 hp / 44 kW @ 12000 rpm	53.6 kW / 72 hp @ 8500 rpm	6.25 kW / 8.5 hp @ 7500 rpm	45 kW / 61 hp @ 7500 rpm	18.6 hp / 13.7 kW @ 8000 rpm	11.2 kW / 15 hp @ 6600 rpm
Max Torque:	60 Nm / 6.1 kgf-m / 44.3 lb-ft @ 5500 rpm	83 Nm / 61.2 lb-ft @ 6000rpm	3.6 kgf-m / 26.0 lb-ft @ 10500 rpm	60 Nm / 6.1 kgf-m / 44.2 lb-ft @ 8250 rpm	8.33 Nm / 0.85 kgf-m / 6.14 ft/lbs @ 6500 rpm	64 Nm / 6.5 kgf-m 6000-	18.8 Nm / 1.92 kg-m @ 6000 rpm	12.7 Nm / 1.3 kgf-m 9.4 lb-ft @ 6500 rpm
Transmission:	5 Speed	Constant-Mesh 6 speed	6 Speed	5 Speed	CVT	Continuously variable, hydro-mechanical two-mode automatic with six-speed manual mode	6 Speed	6 Speed
Final Drive:	Chain, O-ring 5/8 x 1/4"	O-ring chain	Chain	Chain, 630SO 96 link, O-ring .81/2 in. free-play	Belt	Shaft	#520 O-ring-sealed chain	Chain
Front Suspension:	WP - 4054 Roma Top adjuster, preload, compression and rebound adjustable	41mm telescopic forks	41mm Telescopic forks	35mm Kayaba with anti dive adjustable air pressure.	Telescopic fork	41mm Telescopic forks	37mm leading-axle Showa fork	Telescopic fork
Rear Suspension:	Central shock absorber WP IBS with PRO-LEVER linkage to rear- swing-arm with needle bearing	Aluminum double-sided swing arm, directly mounted, preload and rebound damping adjustable (Dynamic ESA)	Rising rate monoshock	Dual shocks adjustable preload and spring rebound damping.	Twin sided swing arm	Single conventional dampers with 7-step adjustment spring preload	Pro-Link Showa single-shock with spring-preload adjustability	2 x Hydraulic shock absorbers
Front Brakes:	Single 320 mm disc, 4 piston caliper	2 x 305mm discs, 2 piston calipers, ABS	2x 300mm discs 4 piston calipers	Single 292 mm disc, 1 piston caliper	Hydraulic disc, 226 mm	130/70 ZR17	Single 240mm disc 2 piston caliper	Single Ø230 mm disc, 2 piston caliper
Rear Brakes:	Single 220 mm disc, 1 piston caliper	Single 265mm disc,1 piston caliper, ABS	Single 240mm disc 1 piston caliper	Single 292 mm disc ,1 piston caliper	Drum, 110 mm	190/50 ZR17	Single 220mm disc	Drum, Ø160 mm
Front Tyre:	120/70 - ZR17 58H	110/80-19	110/70-17	3.25 H19	90/80-16 51J	2x 296 discs 3 piston caliper	2.75-21	90/90-19
Rear Tyre:	160/60 - ZR17 69H	150/70-17	140/60-18	4.00 H18	90/80-16 51J	Single 276mm disc 2 piston caliper	120/80-18	130/90-16
Wheelbase:	1460 mm / 57.5 in	1559 mm / 61.4 in	1395 mm / 54.9 in	1490 mm / 58.7 in	1320 mm / 52.0 in.	1609 mm / 63.3 in	1340 mm / 52.7 in	1550 mm / 61.0 in
Fuel Capacity:	11.3 L / 3.0 US gal / 2.4 Imp gal	15 Litres / 4.0 US gal	16 Litres / 4.2 US gal	18 Litres / 4.8 US gal / 4.0 Imp gal	5.2 L / 1.4 US gal	15 Litres / 3.4 US gal	8.6 Litres / 2.27 gal	10 Litres / 2.6 US gal