Bultago Bultaco Alpina 250 (1971-79) vs Yamaha FZR 600R (1995) vs KTM 790 Duke (2022) vs Moto Guzzi V 50C (1982-86) vs Beta RS 350 (2013) vs Kawasaki ZX-R 750R-K (1991) vs Beta RS 350 (2014) vs Yamaha YZF 600R Thundercat (1996) vs Moto Guzzi V7 Clubman Racer (2015-16) vs Kawasaki EN 500C Vulcan Classic / VN 500 (2005-09) vs Kawasaki GPz 900 Ninja / ZX900R Ninja (1991-96) vs Moto Guzzi Norge 1200GT 8V (2010-11) vs Honda NX 650 Dominator (1989) vs Moto Guzzi Quota 1100ES (1997-99)

Comparison technical specifications

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Make:	Bultago	Yamaha	KTM	Moto Guzzi	Beta	Kawasaki	Beta	Yamaha	Moto Guzzi	Kawasaki	Kawasaki	Moto Guzzi	Honda	Moto Guzzi
Model:	Bultaco Alpina 250	FZR 600R	790 Duke	V 50C	RS 350	ZX-R 750R-K	RS 350	YZF 600R Thundercat	V7 Clubman Racer	EN 500C Vulcan Classic / VN 500	GPz 900 Ninja / ZX900R Ninja	Norge 1200GT 8V	NX 650 Dominator	Quota 1100ES
Years:	1971-79	1995	2022	1982-86	2013	1991	2014	1996	2015-16	2005-09	1991-96	2010-11	1989	1997-99
Engine:		Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder	Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder	Four stroke, V twin, longitudinally mounted, OHV, 2 valve per cylinder.	Four stroke, single cylinder	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, single cylinder	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder	Four stroke, V twin, longitudinally mounted, OHV, 2 valves with light alloy pushrods and rockers.	Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder.	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, V twin, longitudinally mounted, OHV, 2 valve per cylinder.	Four-stroke, single cylinder, SOHC, 4 valve per cylinder	Four stroke, 90° V twin, longitudinally mounted, OHV, 2 valve per cylinder.
Capacity:		599 cc / 36.6 cub in.	799 cc / 48.7 cu-in	490 cc / 29.9 cu-in	349 cc / 21.3 cu in	749 cc / 45.7 cu-in	349 cc / 21.3 cu in	599 cc / 36.5 cu-in	744 cc / 45.4 in	498 cc / 30.4 cy-in	908 cc / 55.4 cu-in	1151 cc / 70.2 cu-in	644 cc / 39.2 cu-in	1064 cc / 64.9 cu-in
Bore x Stroke:		62 x 49.6 mm	88 mm x 65.7 mm	74 x 57 mm	88 x 57.4 mm	71 x 47.3 mm	88 x 57.4 mm	62 x 49.6 mm	80 x 74 mm	74 х 58 mm	72.5 x 55 mm	95 x 81.2 mm	100 x 82 mm	92 x 80 mm
Compression Ratio:		12.0:1	12.7:1	10.4:1	12.1:1	10.8:1	12.1:1	12.0:1	9.6:1	10.2:1	11.0:1	9.8:1	8.3:1	9.5:1
Induction:		4x 34 mm Keihin CVKD CV	DellOrto fuel-Injection	2x 28mm Dell'Orto PHBH carburetors	Keihin FCR-MX Ø 39 mm	4x 39 mm Keihin CVKD (Constant Velocity) carburettors / Ram Air System (single intake)	Keihin FCR-MX Ø 39 mm	4 x 36 mm Keihin CV downdraft carburetors	Weber- Marelli electronic injection	2x 32mm Keihin carburetors	4x 34mm Keihin CVK34 carburettors	Multipoint sequential electronic injection, Magneti Marelli IAW 5A phased, alfa-n system; 2 x Ø50 mm throttle bodies with Weber IWP 189 injectors, Lambda probe.	Single 40mm Keihin VE-type carb	Weber-Marelli fuel-injection
Ignition:		Transistor controlled digital	Bosch EMS with RBW	Battery powered inductive	DC-CDI with variable ignition timing, Kokusan.	Digital	DC-CDI with variable ignition timing, Kokusan.	Digital TCI	Magneti Marelli electronic digital	Digital TCBI	Battery ignition, full electronic!	Inductive discharge, digitally controlled, electronic twin spark ignition	Digital CDI	Electronic
Transmission:		6 speed	6 Speed	5 Speed	6 Speed	6 Speed	6 Speed	6 Speed	6 Speed	6 Speed	6 Speed	6 Speed	5 Speed	5 Speed
Final Drive:	Chain	O-ring chain, 530 size, 106 links	Chain 520 X-Ring	Shaft	O-ring chain, DID	Chain	O-ring chain, DID	530 O-ring chain OEM sprocket sizes per tooth Front= 15 Back= 47	Shaft	Chain	Chain	Shaft	Chain	Shaft
Front Suspension:		41mm Telescopic fork preload adjustable, coil spring, oil damper	WP APEX 43	Telehydraulic gas forks	Marzocchi USD fork, Ø 45 mm, adjustable compression and rebound, TFX technology	41mm Upside-down forks, adjustable ride height, 13-way rebound, 8-way compression.	Marzocchi USD fork, Ø 45 mm, adjustable compression and rebound, TFX technology	41 mm telescopic fork adjustable preload, compression and rebound damping	Marzocchi Ø 40 mm telescopic front forks	36mm Telescopic forks	41mm Telescopic forks, air assisted four way anti dive.	45mm Telescopic hydraulic fork, preload adjustable	41mm leading-axle fork	42mm Marzocchi fork
Front Brakes:		2 x 298mm discs, 4 piston calipers	2x 300mm discs, radially mounted 4 piston caliper	2x 260mm discs	Single Ø 260 mm floating disc, 2 piston caliper	2x 320mm discs 4 piston calipers	Single Ø 260 mm floating disc, 2 piston caliper	2x 300 mm Discs, 4 piston calipers	Single 320mm disc 2 piston caliper	Single 300mm disc	2x 300mm discs 4 piston calipers	2x 320mm discs 4 piston caliper	Single 256mm disc 2 piston caliper	2x 296mm discs 2 piston calipers
Rear Brakes:		Single 245 mm disc, 2 piston caliper	Single 240mm disc, 2 piston floating caliper	Single 235mm disc	Single Ø 240 mm disc, 1 piston caliper	Single 230mm disc 2 piston caliper	Single Ø 240 mm disc, 1 piston caliper	Single 245mm disc, 2 piston caliper	Single 260mm disc 2 piston caliper	180mm drum	Single 250mm disc 2 piston caliper	Single 280mm disc 2 piston caliper	Single 220mm disc 1 piston caliper	Single 260mm disc 2 piston caliper
Front Tyre:		120/60 ZR17	Maxxis Supermaxx ST 170/20Z R17	100/90 H18	90/90 -21	120/70 ZR17	90/90 -21	120/60-17	100/70-18	100/90-19	120/70-17	120/70 ZR17	90/90–21	90/90-121
Rear Tyre:		160/60 ZR17	Maxxis Supermaxx ST 182/20Z R17	130/90 H16	140/80 -18	180/55 ZR17	140/80 -18	160/60-17	130/80-17	140/90-15	150/70-18	180/55 ZR17	120/90–17	130/80-17
Fuel Capacity:		19 Litres / 5.0 US gal	14 Litres / 3.7 US gal	15 Litres / 3.9 US gal	7.9 L / 2.1 US gal	18 Litres / 4.7 US gal	7.9 L / 2.1 US gal	19 Litres / 5.0 US gal / 4.2 Imp gal	22 Litres / 5.8 gal	15 Litres / 4.0 US gal	22 Litres / 5.8 US gal	23 Litres / 6.0 US gal	16 Litres / 4.2 US gal	20 Litres / 5.3 US gal