Suzuki Boulevard S40 (2011-12) vs Harley-Davidson Harley Davidson XLH 1100 Sportster Evolution (1986) vs Cagiva 125 C12R-SP Lucky Explorer Competition (1990) vs Suzuki GS 650G Katana (1983-84) vs Suzuki GR 650 Tempter (1983-89)

Comparison technical specifications

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Make:	Suzuki	Harley-Davidson	Cagiva	Suzuki	Suzuki
Model:	Boulevard S40	Harley Davidson XLH 1100 Sportster Evolution	125 C12R-SP Lucky Explorer Competition	GS 650G Katana	GR 650 Tempter
Years:	2011-12	1986	1990	1983-84	1983-89
Engine:	Four stroke, single cylinder, SOHC	Four stroke, 45° V-Twin, OHV, 2 valves per cylinder.	Two stroke, single cylinder	Four stroke, transverse four cylinders, DOHC, 2 valves per cylinder.	Four stroke, parallel twin cylinders
Capacity:	652 cc / 39.8 cu-in	1101 cc / 67.1 cu-in	125 cc / 7.6 cu-in	673 cc / 41 cu in	651 cc / 39.7 cu in
Bore x Stroke:	94 x 94.0 mm	85.1 x 96.8 mm	56 x 50.6 mm	62 x 55.8 mm	77 x 70 mm
Cooling System:	Air cooled	Air cooled	Liquid cooled	Air cooled	Air cooled
Compression Ratio:	8.5:1	9.0:1	13.0:1	9.4:1	8.7:1
Induction:	Mikuni BS40	Single 34mm Keihin carb	28mm Dell'Orto premix carburetor	4 x 32 mm Mikuni BS32SS CV carburetors	2 x Mikuni carburetors
Ignition:	Transistorized	Electronic	CDI	Transistorized	Battery powered inductive
Starting:	Electric	Electric	Electric	Electric	Electric
Max Torque:	50 Nm / 5.1 kgf-m / 37 lb-ft @3400 rpm	64 lb-ft / 86.7 Nm @ 4000 rpm	20 Nm / 14.7 lb-ft @ 10100 rpm	57 Nm / 5.8 kgf-m / 42 lb-ft @ 8000 rpm	61 Nm / 6.22 lgf-m / 45.0 lb-ft @ 3500 rpm
Transmission:	5 Speed	4 Speed	7 Speed	5 Speed	5 Speed
Final Drive:	Belt	Chain	Chain	Shaft	Chain
Front Suspension:	Telescopic 38 mm stanchions, coil spring, oil damped	35mm Showa tubs diameter 193mm wheel travel.	Marzocchi telescopic, adjustable anti-dive	Air assisted telescopic fork	35mm Air assisted forks
Rear Suspension:	Twin shock, 5-way adjustable spring preload	Dual Showa shocks spring preload adjustable, 76mm wheel travel.	Marzocchi monoshock	Dual shocks, 5-way preload and 4-way damping	Single shock adjustable spring preload
Front Brakes:	265 mm Single disc	Single 285mm disc	Single 298mm disc 4 piston caliper	2 x 275mm discs, 1 piston calipers	Single 260mm disc, 1 piston caliper
Rear Brakes:	Drum, rod operated	Single 285mm disc	Single 240mm disc 1 piston caliper	Single 275mm disc, 1 piston caliper	Drum
Front Tyre:	100/90-19 57H, tube type	MJ 90-19	100/80-16	3.25 H19	100/90-19
Rear Tyre:	140/80-15 67H, tube type	MT 90-16	120/80-17	4.25H 17	130/90-16
Fuel Capacity:	10.5 Litres / 2.6 US gal	8.5 Litres / 2.2 US gal	16 Litres / 4.2 US gal	23 L / 6.1 US gal / 5.1 Imp gal	12 Litres / 3.2 US gal / 2.6 Imp gal