Ducati 900SS (1992) vs Yamaha XS 850SG Midnight Special (1981)
Comparison technical specifications
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| Make: | Ducati | Yamaha |
| Model: | 900SS | XS 850SG Midnight Special |
| Years: | 1992 | 1981 |
| Engine: | Four stroke, 90°“L”twin cylinder, SOHC, desmodromic 2 valves per cylinder, belt driven | Four stroke, transverse three cylinder, DOHC, 2 valves per cylinder |
| Capacity: | 904 cc / 55.2 cu in | 826 cc / 50.4 cu in |
| Bore x Stroke: | 92 x 68 mm | 71.5 x 68.6 mm |
| Compression Ratio: | 9.2:1 | 9.2:1 |
| Cooling System: | Air cooled | Air cooled |
| Induction: | Mikuni BDST 38-B67 | 3 x 34mm Hitachi HSC34 carburetors |
| Ignition: | Kokusan electronic inductive discharge | Transistor controlled |
| Starting: | Electric | Electric and kick |
| Max Power: | 61.8 kW / 84 hp @ 7000 rpm (rear tyre 53.7 kW / 73hp @ 8100 rpm) | 57.7 kW / 79 hp @ 8500 rpm |
| Max Torque: | 84 Nm / 8.6 kgf-m / 62 ft-lb @ 6400 rpm | 66.7 Nm / 6.8 kgf-m / 49.2 ft-lb @ 6500 rpm |
| Transmission: | 6 Speed | 5 Speed |
| Final Drive: | Chain | Shaft |
| Front Suspension: | 41 mm Showa fully adjustable inverted fork | Air assisted telescopic forks |
| Front Wheel Travel: | 120 mm / 4.7 in | 175 mm / 6.9 in |
| Rear Suspension: | Progressive type with adjustable Showa GD monoshock | Swing arm 4-way adjustable damping |
| Rear Wheel Travel: | 125 mm / 4.9 in | 99 mm / 3.9 in |
| Front Brakes: | 2 x 320 mm discs | 2 x 267mm Discs, 1 piston calipers |
| Rear Brakes: | Single 245 mm disc | Single 267mm disc, 1 piston caliper |
| Front Tyre: | 120/70-17 | 3.25H-19 |
| Rear Tyre: | 170/60-17 | 4.00H-17 |
| Dry Weight: | 183 kg / 403 lbs | 241 kg / 531 lbs |
| Dimensions: | Length: 2020 mm / 79.5 in Width: 710 mm / 28.0 in Height: 1110 mm / 43.7 in | Length: 2175 mm / 85.6 in Width: 900 mm / 35.4 in Height: 1190 mm / 46.9 in |
| Wheelbase: | 1410 mm / 55.5 in | 1450 mm / 57.1 in |
| Wet Weight: | 192.5 kg / 424 lbs | 258 kg / 569 lbs |
| Fuel Capacity: | 17.5 L / 4.6 US gal / 3.8 Imp gal | 24 Litres / 6.3 US gal |
| Standing ¼ Mile: | 11.8 sec / 177.7 km/h / 110.4 mph | 13.3 sec / 158 km/h / 98.2 mph |