Royal Enfield Bullet Classic 500 (2011-12) vs Triumph Bonneville Special Edition (2009) vs Kawasaki KL 250 (1976-77) vs Kawasaki Z 400 Special (1977) vs Triumph Sprint ST 1050 (2009)
Comparison technical specifications
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| Make: | Royal Enfield | Triumph | Kawasaki | Kawasaki | Triumph |
| Model: | Bullet Classic 500 | Bonneville Special Edition | KL 250 | Z 400 Special | Sprint ST 1050 |
| Years: | 2011-12 | 2009 | 1976-77 | 1977 | 2009 |
| Engine: | Four Stroke, single Cylinder, OHV | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder | Four stroke single cylinder. SOHC, 2 Valve | Four stroke, parallel twin cylinder, SOHC, 2 Valve per cylinder. | Four stroke, transverse three cylinder. DOHC, 4 valves per cylinder |
| Capacity: | 499 cc / 30.4 cu-in | 865 cc / 52.8 cu in | 246 cc / 15.0 cu-in | 398 cc / 24.2 cu-in | 1050 cc / 64.1 cu in |
| Bore x Stroke: | 84 x 90 mm | 90 x 68 mm | 70 х 64 mm | 64 х 62 mm | 79 x 71.4 mm |
| Cooling System: | Air Cooled | Air-cooled | Air cooled | Air cooled | Liquid cooled |
| Compression Ratio: | 8.5:1 | 9.2:1 | 8.9:1 | 9.4:1 | 12.0:1 |
| Induction: | Electronic Fuel Injection (EFI) | TMultipoint Sequential Fuel injection | Carburetor | 2x Keihin CV32 6caburetor | Multipoint sequential electronic fuel injection |
| Ignition: | Electronic Ignition Keihin | Digital | Battery & coil | Digital CDI | |
| Max Power: | 20.3 kW / 27.2 hp @ 5200 rpm | 49 kW / 66 hp @ 7250 rpm | 21 hp / 15.6 kW @ 8500 rpm | 36 hp / 26.8 kW @ 8500 rpm | 90 kW 123 hp @ 9250 rpm |
| Max Torque: | 41.3 Nm / 4.2 kgf-m / 30.5 lb-ft @ 4000 rpm | 71 Nm / 7.24 kgf-m / 52 ft-lb @ 6000 rpm | 2 kgf-m / 14.4 lb-ft @ 6500 rpm | 3.3 kgf-m / 23.8 lb-ft @ 7500 rpm | 104 Nm / 10.6 kgf-m / 77 ft-lb @ 5000 rpm |
| Transmission: | 5 Speed, constant mesh | 5 Speed | 5 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain, X-ring | Chain | Chain | Chain |
| Front Suspension: | Telescopic, Hydraulic Damping, Stroke 130 mm wheel travel | 41mm Kayaba telescopic forks | Telescopic forks | Telescopic fork | 45 mm Forks with dual rate springs and adjustable preload |
| Rear Suspension: | Twin shocks, gas charged with 5-step adjustable preload | Kayaba chrome spring twin shocks with adjustable preload | Dual shocks | Swing arm | Monoshock with adjustable preload, compression and rebound damping |
| Front Brakes: | Single 280mm disc, 2 piston caliper | Single 310 mm disc, 2 piston calipers | Drum | Drum | 2 x 320 mm Discs, 4 piston calipers |
| Rear Brakes: | Drum, Ø 152 mm, single leading shoe internal expanding | Single 255 mm disc, 2 piston calipers | Drum | Drum | Single 255 mm disc, 2 piston caliper |
| Front Tyre: | 90/90-19 | 100/90 19 | 3.00-21 | 3.25 - S18 4PR | 120/70 ZR17 |
| Fuel Capacity: | 14.5 Litres / 3.8 US gal | 16.6 Litres / 4.4 US gal / 3.7 Imp gal | 10 Litres / 2.6 US gal | 14 Litres / 3.6 US gal | 20 Litres / 5.3 US gal / 4.4 Imp gal |