Yamaha SR 400 (1981-82) vs KTM 990 Super Duke (2004) vs Maico GP 360 (1988) vs Suzuki ST 250E (2004-07) vs Suzuki GS 750TZ (1982-83) vs BMW R 100R (1993-94) vs Kawasaki ER-6n (2012) vs Piaggio MP3 400 ABS (2009-10)

Comparison technical specifications

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Make:	Yamaha	KTM	Maico	Suzuki	Suzuki	BMW	Kawasaki	Piaggio
Model:	SR 400	990 Super Duke	GP 360	ST 250E	GS 750TZ	R 100R	ER-6n	MP3 400 ABS
Years:	1981-82	2004	1988	2004-07	1982-83	1993-94	2012	2009-10
Engine:	Four stroke, single cylinder, SOHC, 2 valves per cylinder.	Four stroke, 75°V-twin cylinder, DOHC, 4 valves per cylinder	Single cylinder, two stroke, SOHC	Four stroke, single cylinder, SOHC, 2 valves	Four stroke, transverse four cylinders, DOHC, 4 valve per cylinder.	Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder.	Four stroke, parallel twin, DOHC, 4 valves per cylinder.	Four stroke, single cylinder, SOHC, 4 valve Piaggio MASTER, catalysed
Capacity:	399 cc / 24.3 cu-in	999.8 cc / 60.9 cu-in	354 cc / 21.6 cub in.	249 cc / 15.2 cu in	748 cc / 45.6 cu in	980 cc / 59.8 cub in.	649 cc / 39.6 cu-in	398.9 cc / 24.3 cub in.
Bore x Stroke:	87 х 67.2 mm	101 x 62.4mm	77 x 76 mm	72.0 x 61.2 mm	67 x 53.4 mm	94 x 70.6 mm	83 X 60 mm	69 x 85.5 mm
Compression Ratio:	8.5:1	11.5:1	13.5:1	9.2:1	9.4:1	8.5:1	11.3;1	10.5:1
Cooling System:	Air cooled	Liquid cooling,	Liquid cooled	Air/oil cooled	Air cooled	Air/oil cooled	Liquid cooled,	Liquid cooled
Starting:	Kick	Electric	Kick	Electric and kick	Electric	Electric	Electric	Electric
Max Power:	27 hp / 17.1 KW @ 7000 rpm	88 kW / 120 hp @ 9000 rpm	12.4 kW / 16.9 hp @ 6800 rpm (restricted)	15 kW / 20 hp @ 7500 rpm	49.6 kW / 68 hp @ 8500 rpm	44 KW / 60 hp @ 6500 rpm	53 kW / 72.1 hp @ 8500 rpm	25 kW / 34 hp @ 7500 rpm
Transmission:	5 Speed	6 Speed	5-Speed	5 Speed, constant mesh	5 Speed	5 Speed	6 Speed	CVT, Twist and go
Front Brakes:	Single disc	2x 320mm discs 4 piston calipers	Disc	Single disc	Single 292 mm disc, 1 piston calipers	2 x ∅285mm disc 4 piston calipers	2x 300mm discs 2 piston Calipers	2 x 240mm discs 2 piston caliper, ABS
Rear Brakes:	Drum	Single 240mm disc 1 piston caliper	Disc	Drum	Drum	Single ∅200mm disc	Single 220mm disc 1 piston Caliper	Single 240mm disc, 2 piston caliper, ABS
Front Tyre:	3.50-19	120/70 ZR17	3.00 x 21 in.	90/90-18M/C 51S	3.25 H19	110 / 80 V18, Metzeler ME33 Lazer	120/70ZR17	120/70-12 in.
Rear Tyre:	4.00-16	180/55 ZR17	4.10 x 18 in.	110/90-18M/C 61S	4.50 H17	140 / 80 V 17, Metzeler ME55A Metronic	160/60ZR17	140/70-15 in/
Fuel Capacity:	12 Litres / 3.2 gal	18.5 Litres / 4.8 gal	10 L / 2.6 US gal	12 Litres / 3.2 US gal / 2.6 Imp gal	16 Litres / 4.2 US gal / 3.5 Imp gal	22 Litres / 5.7 US gal	16 Litres / 4.2 US gal.	12 Litres / 3.2 US gal