Suzuki Boulevard S40 (2011-12) vs Moto Guzzi Stelvio 1200 8V (2013-14) vs Suzuki Boulevard / Intruder M109R (2011) vs Suzuki GT 250 (1974)
Comparison technical specifications
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| Make: | Suzuki | Moto Guzzi | Suzuki | Suzuki |
| Model: | Boulevard S40 | Stelvio 1200 8V | Boulevard / Intruder M109R | GT 250 |
| Years: | 2011-12 | 2013-14 | 2011 | 1974 |
| Engine: | Four stroke, single cylinder, SOHC | Four stroke, 90° V twin, longitudinally mounted, OHV, 4 valve per cylinder. | Four stroke, 54° V-Twin | Two stroke, parallel twin |
| Capacity: | 652 cc / 39.8 cu-in | 1151 cc / 70.2 cu-in | 1786 cc / 109 cu. in | 247 cc / 15.1 cu in |
| Bore x Stroke: | 94 x 94.0 mm | 95 x 81.2 mm | 112 x 90.5 mm | 54 х 54 mm |
| Cooling System: | Air cooled | Air cooled, | Liquid cooled | Air cooled |
| Compression Ratio: | 8.5:1 | 11.0:1 | 10.5:1 | 7.5:1 |
| Induction: | Mikuni BS40 | Weber-Marelli electronic fuel injection with stepper motor control | EFI, 2 x 56mm throttle bodies | Carburetor |
| Ignition: | Transistorized | Inductive discharge, digitally controlled, electronic twin spark ignition | Electronic ignition (Transistorised) | PEI |
| Starting: | Electric | Electric | Electric | Kick |
| Max Power: | 23 kW / 31 hp @5400 rpm | 105 hp / 77 kW @ 7250 rpm | 92 kW / 123 hp @ 6200 rpm | 22.4 kW / 30 hp @ 8000 rpm |
| Max Torque: | 50 Nm / 5.1 kgf-m / 37 lb-ft @3400 rpm | 113 Nm / 83.3 lb-ft @ 5800 rpm | 160 Nm / 16.3 kgf-m / 118 lb-ft @ 3200 rpm | 27.5 Nm / 2.8 kgf-m / 20.3 lb-ft @ 7000 rpm |
| Transmission: | 5 Speed | 6 Speed | 5 Speed | 6-Speed |
| Final Drive: | Belt | Shaft | Shaft | Chain |
| Front Suspension: | Telescopic 38 mm stanchions, coil spring, oil damped | Completely adjustable upside-down fork spring preload and hydraulic compression and rebound damping with mounting bracket for radial brake calliper, | Inverted, 46 mm stanchions | Telescopic fork |
| Rear Suspension: | Twin shock, 5-way adjustable spring preload | Single-sided swing-arm with progressive linkage and monoshock with adjustable hydraulic rebound and dial for setting spring preload | Single damper, preload adjustable | Twin shocks, springs |
| Front Brakes: | 265 mm Single disc | 2x 320mm discs 4 piston caliper, ABS | 2 x 310 mm Discs, 2 piston calipers | Drum |
| Rear Brakes: | Drum, rod operated | Single 282mm disc 2 piston caliper, ABS | Single 274 mm disc, 2 piston caliper | Drum |
| Front Tyre: | 100/90-19 57H, tube type | 110/80 ZR19 | 130/70 R18 | 2.75-18 |
| Rear Tyre: | 140/80-15 67H, tube type | 180/55 ZR17 | 240/40 R18 | 3.00-18 |
| Dimensions: | Length 2180 mm / 85.8 in Width 720 mm / 28.3 in Height 1105 mm / 43.5 in | Length 2195 mm / 86.4 in Width 870 mm / 34.2 in Height 1125 mm / 44.2 in | Length 2450 mm / 95.5 in Width 875 mm / 34.4 in | Length: 1985 mm / 78.1 in Width: 870 mm / 43.3 in Height: 1065 mm / 41.9 in |
| Wheelbase: | 1480 mm / 58.3 in | 1535 mm / 60.4 in. | 1710 mm / 67.3 in | 1290 mm / 50.8 in |
| Wet Weight: | 172 kg / 380 lbs | 257 kg / 566 lbs | 347 kg / 764 lbs | 146 kg / 322 lbs |
| Fuel Capacity: | 10.5 Litres / 2.6 US gal | 23 Litres / 6.0 US gal | 19 Litres / 5.1 US gal / 4.2 Imp gal | 15 L / 4.0 US gal / 3.3 Imp gal |