Suzuki Boulevard M50 (2010-11) vs Suzuki RH 250X (1987) vs Suzuki GSX 1250 FA-Z Special Edition (2015) vs Suzuki GSF 1250 Bandit ABS (2010) vs Suzuki GSX 400X Impulse (1986-87)
Comparison technical specifications
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| Make: | Suzuki | Suzuki | Suzuki | Suzuki | Suzuki |
| Model: | Boulevard M50 | RH 250X | GSX 1250 FA-Z Special Edition | GSF 1250 Bandit ABS | GSX 400X Impulse |
| Years: | 2010-11 | 1987 | 2015 | 2010 | 1986-87 |
| Engine: | Four stroke, 45° V-Twin | Two stroke, single cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 805cc / 49.1 cu-in | 249 cc / 15.2 cu in | 1254.8 cc / 76.5 cu-in | 1254.8 cc / 76.6 cu-in | 399 cc / 24.3 cu in |
| Bore x Stroke: | 83 x 74.4 mm | 70 x 64.8 mm | 79 x 64 mm | 79 x 64 mm | 52 x 47 mm |
| Induction: | Mikuni BDSR34 | Mikuni VM 32 SS carburetor | Fuel Injection | Fuel Injection | 4 x 29 mm carburetors |
| Ignition: | Electronic | Suzuki PEI | Digital transistorized | Digital transistorized | Transistorised |
| Starting: | Electric | Kick | Electric | Electric | Electric |
| Max Power: | 39 kW / 52 hp / @ 6000 rpm | 23.1 kW / 31 hp @ 7500 rpm | 70.5 kW / 96.5 hp @ 7500 rpm | 70.5 kW / 95.8 hp @ 7500 rpm | 43 kW / 59 hp @ 12000 rpm |
| Max Torque: | 69 Nm / 7.0 kgf-m / 51 lb-ft @ 3200 rpm | 31.2 Nm / 3.18 kgf-m / 23.0 lb-ft @ 6500 rpm | 108 Nm / 11.0 kg-fm / 79.7 ft.lb @ 3500 rpm | 108 Nm / 11.0 kgf-m / 79 lb ft @ 3700 rpm | 37 Nm / 3.8 kgf-m / 27.3 lb-ft @ 10500 rpm |
| Transmission: | 5 Speed | 6 Speed | 6 Speed | 6 Speed | 6 Speed |
| Final Drive: | Shaft | Chain | Chain | Chain | Chain |
| Front Suspension: | Inverted, telescopic, coil spring, oil damped | Telescopic forks, oil dampened | Telescopic, oil damped, preload adjustable | Telescopic, coil spring, oil damped | Telescopic forks |
| Rear Suspension: | Link-type, oil damped, 7-way adjustable spring preload | Full floater mono shock, preload adjustable | Link-type suspension, 7-way adjustable preload, 4-way adjustable rebound | Link type, coil spring, oil damped | Dual shocks preload adjustable. |
| Rear Brakes: | Drum | Drum | Single 240mm disc | Single 240mm disc, ABS | Single disc, 1 piston caliper |
| Front Tyre: | 130/90-16 | 3.00-21 | 120/70-ZR17 | 120/70-ZR17 | 110/80-17 |
| Rear Tyre: | 170/80-15 | 130/80-17 | 180/55 ZR17 | 180/55 ZR17 | 130/80-17 |
| Fuel Capacity: | 15.5 Litres / 4.1 / 3.4 US/Imp gal | 12 Litres / 3.2 US gal / 2.6 Imp gal | 18.5 Litres / 4.9 US gal / Imp gal | 19 Litres / 5.0 gal / 4.2 Imp gal | 18 Litres / 4.8 US gal / 4.0 Imp gal |