Triumph T120 Bonneville 650 (1963-64) vs MV Agusta Brutale 675 (2014) vs Mash RoadStar 400 (2016-) vs Triumph 6T Thunderbird (1963-66) vs Vespa Primavera 50 Sean Wotherspoon (2020) vs MV Agusta Brutal 800 / ABS (2017-18) vs MV Agusta Stradale 800 (2015-16)

Comparison technical specifications

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Make:	Triumph	MV Agusta	Mash	Triumph	Vespa	MV Agusta	MV Agusta
Model:	T120 Bonneville 650	Brutale 675	RoadStar 400	6T Thunderbird	Primavera 50 Sean Wotherspoon	Brutal 800 / ABS	Stradale 800
Years:	1963-64	2014	2016-	1963-66	2020	2017-18	2015-16
Engine:	Four stroke, parallel twin, OHV	Four stroke, transverse three cylinder. DOHC, 4 Valve per cylinder	Four strike, single cylinder, SOHC, 4 valves	Four stroke, vertical twin, OHV	Four stroke, single cylinder, SOHC, 4 valve, catalytic converter	Four stroke, transverse three cylinder. DOHC, 4 Valve per cylinder	Four stroke, transverse three cylinder. DOHC, 4 Valve per cylinder,
Capacity:	649 cc / 39.6 cu in	675 cc / 41.2 cu-in	397 cc / 24.2 cu in	649 cc / 40.0 cu in	49 cc / 3 cub in	798 cc / 48.69 cu-in	798 cc / 48.7 cu-in
Bore x Stroke:	71 x 82 mm	79 x 45.9 mm	85 x 70 mm	71 x 82 mm	39 x 41.8 mm	79 x 54.3 mm	79 x 54.3 mm
Compression Ratio:	8.5:1	12.0:1	8.8:1	8.5:1	10.5:1	13.3:1	13.3:1
Cooling System:	Air cooled	Liquid cooled	Air cooled	Air cooled	Air cooled, forced	Cooling with separeted liquid and oil radiators	Liquid Cooled
Starting:	Kick	Electric	Electric	Kick	Electric	Electric	Electric
Max Power:	34 kW / 46 hp @ 6500 rpm	84.5 kW / 113 hp @ 12500 rpm	21.6 kW / 29 hp @ 7000 rpm	31 kW / 42 hp @ 6500 rpm	3.0 kW / 4.1 hp	81 kW / 109 hp @ 11500 rpm	84.5 kW / 115 hp @ 11000 rpm
Clutch:	Wet, multiplate	Wet, multiple discs, cable operated	Wet, multi-plate	Wet, multiplate	Automatic, dry centrifugal with vibration dampers	Hydraulically actuated Wet-clutch, multi-disc with back torque limiting device	Wet, multi-disc with mechanical drive Cassette style
Transmission:	4 Speed, constant mesh	6 Speed	5-Speed	4-Speed constant mesh	CVT	6 Speed constant mesh	6 Speed
Final Drive:	Chain, 106 links	Chain	Chain	Chain	Belt	Chain	Chain
Frame:	Single front downtube, second bracing member running under tank	ALS Steel tubular trellis, Rear swing arm pivot plates: material Aluminium alloy	Tubular steel frame	Brazed lug	Sheet metal body with welded reinforcements	ALS Steel tubular trellis, swing arm pivot plates material Aluminium alloy	ALS Steel tubular trellis (MAG welded) Rear swing arm pivot plates material Aluminium alloy
Front Suspension:	Telescopic forks, hydraulic damping	43mm“UPSIDE - telescopic hydraulic fork,	35 mm Hydraulic fork, adjustable	Telescopic fork, 2 way hydraulic damping	Single arm with coil spring and dual action mono shock absorber	43mm Marzocchi “UPSIDE DOWN” telescopic hydraulic fork with rebound-compression damping and spring preload external and separate adjustment	43mm Marzocchi “UPSIDE DOWN” telescopic hydraulic fork with rebound-compression damping and spring preload external and separate adjustment
Rear Suspension:	Swingarm, twin Girling dampers	Progressive, single shock absorber with spring preload adjustment	Dual-shock, adjustable preload	Swingarm, 2 hydraulic dampers	Hydraulic monoshock	Progressive Sachs, single shock absorber with rebound and compression damping and spring preload adjustment Single sided swing arm material Aluminium alloy	Progressive Sachs, single shock absorber with rebound and compression damping and spring preload adjustment Single sided swing arm material Aluminium alloy
Front Brakes:	8" SLS drum	2x 320mm floating discs 4 pistons calipers	Single 280 mm disc, 2 piston caliper	SLS drum, 8 in	Stainless steel disc, 200 mm, hydraulically operated	2x 320 mm floating discs with Brembo radial-type 4 pistons caliper	2x 320mm floating discs 4 piston calipers
Rear Brakes:	7" SLS drum	Single 220mm disc single piston caliper	Drum	SLS drum, 7 in	Drum, 140 mm, mechanically operated	Single 220mm disc 2 piston caliper	Single 220mm disc 2 piston caliper
Seat Height:	775 mm / 30.5 in	812 mm / 31.9 in	780 mm / 30.7 in	825.5 mm / 32.5 in	780 mm / 30.7 in	830 mm / 32.6 in	870 mm / 34.23 in
Dry Weight:	165 kg / 363 lbs	163 kg / 358 lbs	151 kg / 333 lbs	165 kg / 363 lbs	115 kg / 254 lbs	175 kg / 385,8 lbs	181 kg / 399 lbs