BMW R 75/6 (1973-76) vs Kawasaki KDX 400 (1979-80)
Comparison technical specifications
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| Make: | BMW | Kawasaki |
| Model: | R 75/6 | KDX 400 |
| Years: | 1973-76 | 1979-80 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. | Two stroke, single cylinder. |
| Capacity: | 745 cc / 45.5 cu in. | 392 cc / 23.9 cu-in |
| Bore x Stroke: | 82 x 70.6 mm | 80 x 78 mm |
| Compression Ratio: | 9.0:1 | 6.8:1 |
| Cooling System: | Air cooled | Air cooled |
| Induction: | 2 x Bing constant depression carbutetors | 36mm Mikuni carburetor |
| Ignition: | Battery ignition | CDI |
| Starting: | Electric | Kick |
| Max Power: | 36.8 kW /50 hp @ 6200 rpm | 39 hp / 29 kW @ 7000 rpm |
| Max Torque: | 60 Nm / 6.1 kgf-m / 44 ft lb @ 5000 rpm | 42.2 Nm / 31.1 ft-lb @ 6000 rpm |
| Transmission: | 4 Speed | 5 Speed |
| Final Drive: | Shaft | Chain |
| Front Suspension: | Telescopic hydraulic forks | Adjustable air forks |
| Front Wheel Travel: | 208 mm / 8.2" | 259 mm / 10.2 in |
| Rear Suspension: | Long swinging arm with strut. 125mm wheel travel | Dual shock |
| Rear Wheel Travel: | 125 mm / 4.9" | 230 mm / 9.1 in |
| Front Brakes: | ∅200mm Drum | Drum |
| Rear Brakes: | ∅200mm Drum | Drum |
| Front Tyre: | 3.25 - S19 | 3.50 -21 |
| Rear Tyre: | 4.00 - S18 | 5.00 -18 |
| Fuel Capacity: | 24 Litres / 6.3 US gal | 12 Litres / 33 US gal |