Triumph 6T Thunderbird (1950-53) vs Triumph Speed Twin (2019) vs Suzuki GSX-R 400 (1986) vs Harley-Davidson Harley Davidson VRSCA V-Rod 100th Anniversary Edition (2003) vs Harley-Davidson Harley Davidson Street Glide Special 115th Anniversary (2018) vs SYM Symphony S 50 / SR 50 (2014) vs Kawasaki GPX 600R Ninja / ZX 600R (1989-93) vs Yamaha XVS 250 V-Star (2010-11) vs Harley-Davidson Harley Davidson FLHRC/I Road King Classic (2003-04) vs Yamaha WR 250F (2007-08) vs Honda GL1500C / F6C Valkyrie Interstate (2000-03) vs Harley-Davidson Harley Davidson FLHX Street Glide 115th Anniversary (2018) vs Harley-Davidson Harley Davidson FLH 1200 Electra Glide (1965-69) vs Yamaha YZF-600 R6 (2001) vs Ducati Monster 1100 EVO (2013) vs Moto Guzzi 750 Strada (1989-) vs Ducati Monster 696 (2011)

Comparison technical specifications

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Make:	Triumph	Triumph	Suzuki	Harley-Davidson	Harley-Davidson	SYM	Kawasaki	Yamaha	Harley-Davidson	Yamaha	Honda	Harley-Davidson	Harley-Davidson	Yamaha	Ducati	Moto Guzzi	Ducati
Model:	6T Thunderbird	Speed Twin	GSX-R 400	Harley Davidson VRSCA V-Rod 100th Anniversary Edition	Harley Davidson Street Glide Special 115th Anniversary	Symphony S 50 / SR 50	GPX 600R Ninja / ZX 600R	XVS 250 V-Star	Harley Davidson FLHRC/I Road King Classic	WR 250F	GL1500C / F6C Valkyrie Interstate	Harley Davidson FLHX Street Glide 115th Anniversary	Harley Davidson FLH 1200 Electra Glide	YZF-600 R6	Monster 1100 EVO	750 Strada	Monster 696
Years:	1950-53	2019	1986	2003	2018	2014	1989-93	2010-11	2003-04	2007-08	2000-03	2018	1965-69	2001	2013	1989-	2011
Engine:	Four stroke, vertical twin, OHV	Four stoke, parallel twin, 270o crank, SOHC, 4 valve per cylinder	Four stroke, transverse four cylinder, DOHC 4 valves per cylinder. TSCC	Four stroke, 60° V-twin, DOHC, 4 valve per cylinder	Four stroke, V-Twin, Milwaukee-Eight 107, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder	Single cylinder, 4-stroke, SOHC	Four stroke, transverse four cylinders, DOHC, 4 valve per cylinder	Four stroke, V-twin cylinder, SOHC, 2 valves per cylinder.	Four stroke, 45° V-Twin, Twin Cam 88® vibration isolation-mounted Valves Pushrod-operated overhead valves; w/ hydraulic self-adjusting lifters; two valves per cylinder	Four stroke, single cylinder, DOHC, 5 valve	Four stroke, Opposed boxer six cylinders, SOHC. 2 valve per cylinder	Four stroke, V-Twin, Milwaukee-Eight 107, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder	Four stroke, 45° V-Twin, OHV, 2 valves per cylinder.	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, 90° “L” twin cylinder, SOHC, desmodromic 2 valves per cylinder	Four stroke, V twin, longitudinally mounted, OHV, 4 valves per cylinder.	Four stroke, 90°“L”twin cylinder, SOHC, 2 desmodromic valves per cylinder
Capacity:	649 cc / 40.0 cu in	1198 cc / 73.1 cu in	398 cc / 24.3 cu-in	1130 cc / 59 cu-in	1746 cc / 107 cub in	49.5 cc / 3.0 cub in.	598 cc / 36.1 cu-in	249 cc / 15.1 cu/in	1449 cc / 88.4 cu-in	249 cc / 15.2 cu-in	1520 cc / 92.8 cub in.	1746 cc / 107 cub in	1207 cc / 74 cu-in	599 cc/ 36.5 cu-in	1078 cc / 65.8 cu in	744 cc / 45.3 cu-in	696 cc / 42.4 cu-in
Cooling System:	Air cooled	Liquid cooled	Liquid cooled	Liquid cooled	Air cooled	Air cooled, forced	Liquid cooled	Air cooled	Air cooled	Liquid cooled,	Liquid cooled	Air cooled	Air cooled	Liquid cooled	Air cooled	Air cooled	Air cooled
Compression Ratio:	8.5:1 (Export), 7.0:1 (UK)	11.0:1	11.5:1	11.3:1	10.0:1	12.2:1	11.71	10.0:1	8.9:1	12.5:1	9.8:1	10.0:1	8.0:1	12.4;1	11.3:1	9.7:1	10.7:1
Induction:	1 x Amal Monobloc, 25 mm (1953: SU type MC2)	Multipoint sequential electronic fuel injection	2 x AS27VW carburetors	Sequential Port Electronic fuel injection with 53mm throttle bodies	Electronic Sequential Port Fuel Injection (ESPFI)	Electronic	4x 32mm Keihin CV carburetors	26mm Mikuni BDS26 carburetor	Carburetion 40 mm constant velocity with enrichener and accelerator pump ESPFI 38 mm throttle bore electronic sequential port fuel injection	Keihin FCR-MX37 flat-slide w/throttle position sensor)	6 x 28 mm Keihin carburetors	Electronic Sequential Port Fuel Injection (ESPFI)	Tillotson 1-5/8" dual Venturi diaphragm w/accelerator pump	Fuel Injection 38mm throttle bodies	Siemens electronic fuel injection, 45mm throttle bodies	2x 30mm PHBH Dell'Orto carburetors	Marelli Injection. Siemens electronic fuel injection, 45mm throttle body
Starting:	Kick	Electric	Electric	Electric	Electric	Electric & kick	Electric	Electric	Electric	Electric / Kick	Electric	Electric	Kick & electric	Electric	Electric	Electric	Electric
Transmission:	4-Speed constant mesh	6-Speed	6 Speed, constant mesh	5 Speed	6 Speed	CVT	6 Speed	5 Speed	5 Speed	5 Speed	5 Speed	6 Speed	4 Speed	6 Speed	6 Speed	5 Speed	6 Speed
Final Drive:	Chain, 101 links	Chain, X-ring	Chain	Belt	Belt	Belt	Chain	Chain	Belt	#520 Chain	Shaft	Belt	Chain	#530 O-ring chain	Chain; front sprocket 15; rear sprocket 39	Shaft	Chain; front sprocket 15; rear sprocket 39
Front Suspension:	Telescopic fork, hydraulic damping	41mm cartridge forks	Telescopic forks	Huge 49mm telescopic forks	41.3 mm telescopic, cartridge-style damping,	Telescopic fork	38mm Telescopic with electronic anti-drive.	33 mm Telescopic fork with 140mm wheel travel.	Telescopic	48mm Fully adjustable inverted forks	45mm Showa forks	41.3 mm telescopic, cartridge-style damping,	Telescopic forks	43mm telescopic fork, preload, compression and rebound damping adjustable.	Marzocchi 43mm fully adjustable usd forks	Moto Guzzi hydropneumatic telescopic forks with pressure equalizer	Progressive linkage with preload and rebound adjustable Sachs monoshock
Front Brakes:	SLS drum, 7 in	2 x 305 mm discs, Brembo 4-piston fixed calipers, ABS	2 x Discs, 4 piston calipers	2x 292mm discs 4 piston calipers	Caliper Type 32 mm, 4-piston fixed	Hydraulic disc, 226 mm	2x 270mm discs	Single 282mm disc	2x 292mm discs 4 piston calipers	Single 250mm disc 2 piston caliper	2 x 296 mm discs, 2 piston calipers	Caliper Type 32 mm, 4-piston fixed	Drum	2x 298mm discs 4 piston calipers	2 x 320 mm Discs, 4 piston radial caliper with ABS	2x 270mm discs	2x 320 mm Discs, 4 piston calipers
Rear Brakes:	SLS drum, 7 in	Single 220 mm disc, Nissin 2-piston floating caliper, ABS	Single disc, 2 piston caliper	Single 292mm disc 4 piston caliper	Caliper Type 32 mm, 4-piston fixed	Disc, 226 mm	Single 130mm disc	130mm drum	Single 292mm disc 4 piston caliper	Single 240mm disc 1 piston caliper	Single 316 mm disc, 2 piston caliper	Caliper Type 32 mm, 4-piston fixed	Drum	Single 220mm disc 1 piston caliper	Single 245 mm disc, 2 piston caliper with ABS	Single 235mm disc	Single 245mm disc, 2 piston caliper
Fuel Capacity:	13.6 L / 3.6 US gal / 3.0 Imp gal (US), 18 L / 4.8 US gal / 4.0 Imp gal (UK and export)	14.5 Litres / 3.8 US gal	15 Litres / 3.96 US gal / 3.3 Imp gal	15 Litres / 4.0 US gal	22.7 Litres / US 6.0 gal	5.5 L / 1.5 US gal	19.5 Litres / 5.1 US gal	9.5 Liters / 2.5 US gal	18.9 Litres / 5.0 US gal	8 Liters / 2.1 gal	20 Litres / 5.3 US gal	22.7 Litres / US 6.0 gal	16 Litres / 4.2 US gal	17.5 Litres / 4.6 gal	13 L / 3.4 US gal / 2.9 Imp gal	16 Litres / 4.2 US gal	15 Litres / 3.8 US gal / 3.3 Imp gal