Ducati 900 SS (1975) vs Kawasaki VN 800 Vulcan (2001-03) vs Royal Enfield Bullet Classic 500 (2015-16) vs Laverda 750S Sport (1998)
Comparison technical specifications
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| Make: | Ducati | Kawasaki | Royal Enfield | Laverda |
| Model: | 900 SS | VN 800 Vulcan | Bullet Classic 500 | 750S Sport |
| Years: | 1975 | 2001-03 | 2015-16 | 1998 |
| Engine: | Four stroke, 90°“L”twin cylinder, SOHC, 2 valves per cylinder, bevel gear driven | Four stroke, V-Twin, SOHC, 4 valves per cylinder | Four Stroke, single Cylinder, OHV | Four stroke, parallel twin. DOHC, 4 valve per cylinder. |
| Capacity: | 864 cc / 52.7 cu in | 805 cc / 49.1 cu-in | 499 cc / 30.4 cu-in | 747 cc / 45.6 cu-in |
| Bore x Stroke: | 86 x 74.4 mm | 88 x 66.2 mm | 84 x 90 mm | 83 X 69 mm |
| Compression Ratio: | 9.5:1 | 9.5:1 | 8.5:1 | 11.5:1 |
| Cooling System: | Air cooled | Liquid cooled | Air Cooled | Liquid cooled |
| Induction: | 2 x Dell'Orto PHM 40 A, B or C carburetors | Keihin CVK36 carburetor | Electronic Fuel Injection (EFI) | Twin Weber-Marelli electronic injection |
| Ignition: | Electronic | Digital K-TRIC | Electronic Ignition Keihin | Weber-Marelli electronic |
| Starting: | Kick (electric as an option) | Kick | Electric & Kick | Electric |
| Max Power: | 58.8 kW / 80 hp @ 7500 rpm | 56 hp / 40.8 kW @ 7000 rpm | 20.3 kW / 27.2 hp @ 5200 rpm | 85 hp / 63.3 kW @ 9200 rpm |
| Transmission: | 5 Speed | 5 Speed | 5 Speed, constant mesh | 6 Speed |
| Final Drive: | Chain | Chain | Chain | Chain |
| Front Suspension: | 38 mm Marzocchi fork | 41 mm. hydraulic telescopic fork | Telescopic, Hydraulic Damping, Stroke 130 mm wheel travel | Paioli Racing Inverted adjustable preload, rebound & compression damping |
| Rear Suspension: | Marzocchi 310 mm dual shocks, 3-way adjustable | Uni-Trak with 7 way cam-type preload adjuster | Twin shocks, gas charged with 5-step adjustable preload | Paioli Monoshock adjustable spring preload, rebound & compression damping |
| Front Brakes: | 2 x 280mm Disc, 1 piston caliper | Single 300mm disc 2 piston caliper | Single 280mm disc, 2 piston caliper | 2x 320mm discs 4 piston calipers |
| Rear Brakes: | Single 229 mm disc | 180mm Drum | Drum, Ø 152 mm, single leading shoe internal expanding | Single 245mm disc 2 piston caliper |
| Seat Height: | 760 mm / 29.9 in | 712 mm / 28.0 in | 800 mm / 31.5 in | 770 mm / 30.3 in |
| Fuel Capacity: | 20 L / 5.3 US gal / 4.4 Imp gal | 15 Litres / 3.9 US gal | 14.5 Litres / 3.8 US gal | 16 Litres / 4.2 US gal |