Yamaha XT660R (2012) vs Suzuki RG 500 Gamma (1985) vs Suzuki Boulevard S40 (2019)

Comparison technical specifications

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Make:	Yamaha	Suzuki	Suzuki
Model:	XT660R	RG 500 Gamma	Boulevard S40
Years:	2012	1985	2019
Engine:	Four stroke, single cylinder, SOHC, 4 valve	Two stroke, square four cylinder, rotary valve with exhaust port valves	Four stroke, single cylinder, SOHC
Capacity:	659 cc/ 40.2 cu-in	498 cc / 30.4 cu in	652 cc / 39.8 cu-in
Bore x Stroke:	100 x 84 mm	56 x 50.6 mm	94 x 94.0 mm
Compression Ratio:	10.0: 1	7.0:1	8.5:1
Cooling System:	Liquid cooled	Liquid cooled	Air cooled
Induction:	Fuel injection, 44 mm throttle body	4 x 28mm Mikuni VM28SH Flatslide carburetors	Mikuni BS40
Lubrication:	Dry sump	Wet sump	Wet sump
Ignition:	TCI	Suzuki PEI	Transistorized
Starting:	Electric	Kick	Electric
Max Power:	33.8 kW / 48 hp @ 6000 rpm	70 kW / 95 hp @ 9000 rpm	23 kW / 31 hp @5400 rpm
Max Torque:	58.4 Nm / 5.7 kgf-m @ 5250 rpm	72 Nm / 7.3 kgf-m 53.1 lb-ft @ 9000 rpm	50 Nm / 5.1 kgf-m / 37 lb-ft @3400 rpm
Clutch:	Wet, multiple-disc coil spring	Wet, cable operated	Wet, multiple discs, cable operated
Transmission:	5 Speed	6 Speed	5 Speed
Final Drive:	Chain	Chain, 2.500 (40/16)	Belt
Front Suspension:	43 mm Telescopic forks,	Air adjustable fork with 38mm tubes, adjustable spring preload and anti dive valuing.	Telescopic 38 mm stanchions, coil spring, oil damped
Front Wheel Travel:	225 mm / 8.8 in	130 mm / 5.2 in	140 mm / 5.5 in
Rear Suspension:	Oscillating arm standard Monocross. 200mm wheel travel	Shock absorber, adjustable for spring preload	Twin shock, 5-way adjustable spring preload
Rear Wheel Travel:	200 mm / 7.9 in	126 mm / 4.9 in	80 mm / 3.1 in
Front Brakes:	Single 298mm disc 2 piston caliper	2 x 260 mm Discs, 4 piston calipers	265 mm Single disc
Rear Brakes:	Single 245mm disc 1 piston caliper	Single 210 mm disc, 2 piston caliper	Drum, rod operated
Front Tyre:	90/90- 21	110/90 V16	100/90-19 57H, tube type
Rear Tyre:	130/80–17	120/90 V17	140/80-15 67H, tube type
Dimensions:	Height 1230 mm / 48.4 in Length 2240 mm / 88.1 in Width 845 mm / 33.2 in	Length 2100 mm / 82.7 in Width 695 mm / 27.4 in Height 1185 mm / 46.7 in	Length 2180 mm / 85.8 in Width 720 mm / 28.3 in Height 1105 mm / 43.5 in
Wheelbase:	1505 mm / 59.3 in	1425 mm / 56.1 in	1480 mm / 58.3 in
Ground Clearance:	210 mm / 8.3 in	120 mm / 4.7 in	135mm / 5.3 in
Seat Height:	865mm / 34.1 in	770 mm / 30.3 in	700 mm / 27.6 in
Wet Weight:	181 kg / 421 lbs	175 kg / 386 lbs	172 kg / 380 lbs
Fuel Capacity:	15 Litres / 3.3 US gal	22 Litres / 5.8 US gal / 4.8 Imp gal	10.5 Litres / 2.6 US gal