Triumph 6T Thunderbird (1963-66) vs Kawasaki GPZ 305 (1984-) vs MV Agusta Brutale 1000RR (2020) vs MV Agusta F3 675 (2017-18) vs Triumph Trophy TR6C Special (1970) vs MV Agusta Dragster 800RC (2017) vs Honda NC 700D Integra (2012-13) vs BMW R 12 (1935-42)

Comparison technical specifications

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Make:	Triumph	Kawasaki	MV Agusta	MV Agusta	Triumph	MV Agusta	Honda	BMW
Model:	6T Thunderbird	GPZ 305	Brutale 1000RR	F3 675	Trophy TR6C Special	Dragster 800RC	NC 700D Integra	R 12
Years:	1963-66	1984-	2020	2017-18	1970	2017	2012-13	1935-42
Engine:	Four stroke, vertical twin, OHV	Four stroke Parallel twin, SOHC, 2 valves per cylinder	Four stroke, transverse four cylinder, DOHC, radial valves, 4 valves per cylinder	Four stroke, transverse three cylinder. DOHC, 4 Valve per cylinder,	Four stroke, parallel twin cylinder, OHV	Four stroke, transverse three cylinder. DOHC, 4 Valve per cylinder,	Four stroke , Parallel twin, SOHC, 4 valves per cylinder	Four stroke, two cylinder flat twin, SV
Capacity:	649 cc / 40.0 cu in	306 cc / 18.7 cu-in	998 cc / 60.9 cu-in	675 cc / 41.1 cu-in	649 cc / 39.6 cu in	798 cc / 48.68 cu. in	670 cc / 40.8 cu-in	745
Bore x Stroke:	71 x 82 mm	61.0 x 52.4 mm	79 x 50.9 mm	79 x 45.9 mm	71 x 82 mm	79 x 54.3 mm	73 × 80 mm	78 x 78 mm
Cooling System:	Air cooled	Air cooled	Cooling with separated liquid and oil radiators	Liquid Cooled	Air cooled	Cooling with separated liquid and oil radiators	Liquid-cooled	Air cooled
Compression Ratio:	8.5:1	9.7:1	13.4:1	13.0:1	8.5:1	13.3;1	10.7:1	5.2:1
Starting:	Kick	Electric	Electric	Electric	Electric	Electric	Electric	Kick
Max Power:	31 kW / 42 hp @ 6500 rpm	19.9 kW / 26.6 hp @ 10000 rpm	208 hp / 153 kW @ 13000 rpm	94.2 kW / 128 hp @ 14400 rpm	32.8 kW / 44.6 hp @ 6500 rpm	103 kW / 140 hp @ 13100 rpm	38.1 kW / 51.1 hp @ 6250 rpm	14.9 kW / 20hp @ 4000 rpm (Single Carburetor model: 13.4 kW / 18hp @ 3400 rpm)
Clutch:	Wet, multiplate	Wet clutch	Wet, multi-disc with back torque limiting device and Brembo radial pump/lever assembly	Wet, multiple discs, cable operated	Wet, multi-plate, cable operated	Wet, multi plate with slipper clutch	Wet Multiplate	Double plate dry clutch
Transmission:	4-Speed constant mesh	6 Speed	Cassette style, 6 speed, constant mesh	6 Speed	4 Speed constant mesh	Cassette style 6 speed constant mesh	6 Speed	4 Speed
Final Drive:	Chain	Belt	Chain	Chain	Chain, 106 links	Chain	Chain	Shaft
Front Suspension:	Telescopic fork, 2 way hydraulic damping	Telescopic forks	43mm Öhlins Nix EC hydraulic “upside down” front forks with TiN superficial treatment, completely adjustable with electronically controlled compression and rebound damping with manually controlled spring preload	43mm “UPSIDE - telescopic hydraulic fork with rebound-compression damping and spring preload external and separate adjustment,	Telescopic fork, hydraulic damping	Marzocchi “UPSIDE DOWN” telescopic hydraulic fork in DLC treated aluminium, with red colour anodized fork legs and having rebound compression damping and spring preload external and separate adjustment - Fork dia. 43 mm	41 mm telescopic forks	Telescopic fork
Rear Suspension:	Swingarm, 2 hydraulic dampers	Swing arm	Progressive, single shock absorber Öhlins EC TTX completely adjustable with electronically controlled compression and rebound damping and spring preload, aluminium alloy single sided swing arm	Progressive, single shock absorber with rebound and compression (High speed/ Low speed) damping and spring preload adjustment	Swingarm, 2 x Girling dampers	Progressive Sachs, single shock absorber with rebound and compression damping and spring preload adjustment - Single sided swing arm material Aluminium alloy	Single monoshock damper	Rigid, spring loaded saddle
Rear Brakes:	SLS drum, 7 in	Drum	Single 220mm disc, Brembo 2 pistons caliper	Single 220mm disc, single piston calipers	SLS drum, one-side, 7 in	Single 220mm disc 2 piston caliper	Single 240 mm hydraulic disc 1 piston caliper and sintered metal pads	∅200mm Drum