Ducati 48/50 Brio (1963-67) vs Moto Guzzi V 65SP (1979-) vs BMW G 450X (2009)
Comparison technical specifications
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| Make: | Ducati | Moto Guzzi | BMW |
| Model: | 48/50 Brio | V 65SP | G 450X |
| Years: | 1963-67 | 1979- | 2009 |
| Engine: | Two-stroke, single cylinder, piston port | Four stroke, 90° V twin, longitudinally mounted, OHV, 2 valve per cylinder. | Four stroke, single cylinder, DOHC, 4 valve |
| Capacity: | 47.6 cc / 2.9 cu in | 643 cc / 39.2 cu-in | 449 cc / 27.4 cub. in. |
| Bore x Stroke: | 38 x 42 mm | 80 x 64 mm | 98 x 59 mm |
| Compression Ratio: | 7.0:1 | 10.0:1 | 12.0 :1 |
| Induction: | Dell'Orto SHA 14/12 | 2x Dell'Orto PHBH30 carburetors | Electronic fuel injection |
| Starting: | Kick | Electric | Electric |
| Max Power: | 1.1 kW / 1.5 hp @ 5200 rpm | 52 hp / 37.9 kW @ 7050 rpm | 30.7 kW / 41 hp @ 7000 rpm |
| Clutch: | Wet, multiplate | Dry single plate | Multiple plate in oil bath |
| Transmission: | Three speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | Shaft | Chain |
| Front Suspension: | Swinging shackle fork | 35mm Air assisted forks, 140mm wheel travel. | 45mm Upside-down forks |
| Rear Suspension: | Swingarm, dual rubber shocks | Dual air charged shock, 75mm wheel travel. | Direct Mounted Öhlins Shock |
| Front Brakes: | Drum, 105 mm | 2x 260mm discs 2 piston calipers | Single 260mm disc, 2 piston floating caliper |
| Rear Brakes: | Drum, 105 mm | Single 235mm disc 1 piston caliper | Single 220mm disc, 1 piston floating caliper |
| Dry Weight: | 63.5 kg / 140 lbs | 165 kg / 363 lbs | 111 kg / 245 lbs |