Ducati Monster 1100 (2009) vs Yamaha GX 400 (1978-79)
Comparison technical specifications
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| Make: | Ducati | Yamaha |
| Model: | Monster 1100 | GX 400 |
| Years: | 2009 | 1978-79 |
| Engine: | Four stroke, 90° “L” twin cylinder, SOHC, desmodromic 2 valves per cylinder | Four stroke, parallel twin |
| Capacity: | 1078 cc / 65.8 cu in | 391 |
| Bore x Stroke: | 98 x 71.5 mm | 69 х 52.4 mm |
| Cooling System: | Air cooled | Air cooled |
| Compression Ratio: | 11.3:1 | 9.2:1 |
| Induction: | Siemens electronic fuel injection, 45mm throttle bodies | Carburetor |
| Starting: | Electric | Kick |
| Max Power: | 69.8 kW / 95 hp @ 7500 rpm | 37 hp @ 8800 rpm |
| Max Torque: | 102.9 Nm / 10.5 kgf-m / 76 lb-ft @ 6000 rpm | 3.2 @ 8000 rpm |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain; front sprocket 15; rear sprocket 39 | Chain |
| Front Suspension: | Showa 43mm fully adjustable upside-down forks | Telescopic forks |
| Rear Suspension: | Progressive with preload and rebound Sachs adjustable monoshock | Dual shocks |
| Front Brakes: | 2 x 320 mm Discs, 4 piston radial caliper | Single disc |
| Rear Brakes: | Single 245 mm disc, 2 piston caliper | Single disc |
| Front Tyre: | 120/70 ZR17 | 3.00-18 |
| Rear Tyre: | 180/55 ZR17 | 3.50-18 |
| Dry Weight: | 169 Kg / 373 lbs | 168 kg |
| Fuel Capacity: | 15 L / 4.0 US gal / 3.3 Imp gal |