Ducati 900 SS (1978) vs Yamaha V-Max (2012) vs Ducati 500 Desmo (1978-79) vs Laverda Jota 1000 (1981-) vs Ducati 999 (2003)
Comparison technical specifications
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| Make: | Ducati | Yamaha | Ducati | Laverda | Ducati |
| Model: | 900 SS | V-Max | 500 Desmo | Jota 1000 | 999 |
| Years: | 1978 | 2012 | 1978-79 | 1981- | 2003 |
| Engine: | Four stroke, 90°“L”twin cylinder, SOHC, 2 valves per cylinder, bevel gear driven | Four stroke, V-four, DOHC, 4 valve per cylinder. | Four stroke, parallel twin cylinder, SOHC, chain driven, 2 valve per cylinder | Four stroke, transverse three cylinder, DOHC, 2 valve per cylinder. | Four stroke, 90° “L” twin cylinder, DOHC, desmodromic 4 valves per cylinder, belt driven |
| Capacity: | 864 cc / 52.7 cu in | 1679 cc / 102.4 cu-in | 496.9 cc / 30.2 cu in | 981 cc / 59.8 cu-in | 998 cc / 60.9 cu in |
| Bore x Stroke: | 86 x 74.4 mm | 90 x 66 mm | 78 x 52 mm | 75 x 74 mm | 100 x 63.5 mm |
| Compression Ratio: | 9.5:1 | 11.3:1 | 9.6:1 | 8.8:1 | 11.4:1 |
| Cooling System: | Air cooled | Liquid cooled | Air cooled | Air cooled | Liquid cooled |
| Induction: | 2 x Dell'Orto PHM 40 A, B or C carburetors | Mikuni 48mm fuel injection | Dell'Orto PHF30BS/BD | 3x 32mm Dell'Orto carbs | Weber Marelli electronic fuel injection, 54 mm throttle body |
| Ignition: | Electronic | TCI | Points and coil | Borsch electronic | Marelli electronic |
| Starting: | Kick (electric as an option) | Electric | Electric | Electric | Electric |
| Max Power: | 49.2 kW / 67 hp @ 7500 rpm | 147.2 kW / 200 hp @ 9000 rpm | 36.8 kW / 50 hp @ 8500 rpm | 97 hp / 70.7 kW @ 7800 rpm | 90.4 kW / 124 hp @ 9500 rpm |
| Transmission: | 5 Speed | 5 Speed with slipper clutch | 5 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Shaft | Chain | Chain | Chain |
| Front Suspension: | 38 mm Marzocchi fork | 52mm Telescopic forks | 35 mm Paioli telescopic fork | Coils springs | Showa 43mm upside-down fully adjustable fork with TiN surface treatment |
| Rear Suspension: | Marzocchi 310 mm dual shocks, 3-way adjustable | Swingarm Link-type suspension | Swing arm, 2 x Marzocchi shocks, 3-way adjustable | Dual shock absorbers, 5-way adjustable coil springs | Progressive linkage with fully adjustable Showa monoshock |
| Front Brakes: | 2 x 280mm Disc, 1 piston caliper | 2x 320mm discs | 2 x 256 mm Brembo discs | 2x 280mm discs 2 piston calipers | 2 x 320 mm Discs, 4 piston calipers |
| Rear Brakes: | Single 229 mm disc | Single 280mm disc | Single 260 mm Brembo disc | Single 280mm disc 1 piston caliper | Single 245mm disc, 2 piston caliper |
| Fuel Capacity: | 20 L / 5.3 US gal / 4.4 Imp gal | 15 Litres / 4.0 US gal | 14 L / 3.7 US gal / 3.1 Imp gal | 20 Litres / 5.4 US gal | 15.5 Litres / 4.1 US gal / 3.4 Imp gal |
| Standing ¼ Mile: | 12.6 sec | 10.9 sec | 13.7 sec | 12.3 sec / 110 mph | 11.2 sec |
| Top Speed: | 217 km/h / 135 mph | 222.4 km/h / 138.1 mph | 185 km/h / 115 mph | 217 km/h / 135 mph | 266.4 km/h / 165.5 mph |