BMW R 45 (1978-79)
Comparison technical specifications
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| Make: | BMW | 
| Model: | R 45 | 
| Years: | 1978-79 | 
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. | 
| Capacity: | 453 cc / 27.6 cu in. | 
| Bore x Stroke: | 70 x 61.5 mm | 
| Compression Ratio: | 9.2:1 | 
| Cooling System: | Air cooled | 
| Induction: | 2 x Bing V65 carburetors | 
| Ignition: | Bosch contact free electronic ignition | 
| Starting: | Kick | 
| Max Power: | 20 kW / 27 hp @ 7250 rpm | 
| Max Torque: | 37.5 Nm / 3.82 kgf-m / 27.65 lb-ft @ 5000 rpm | 
| Transmission: | 5 Speed | 
| Final Drive: | Shaft | 
| Front Suspension: | Telescopic hydraulic forks | 
| Front Wheel Travel: | 175 mm / 6.9" | 
| Rear Suspension: | Long swinging arm with adjustable strut | 
| Rear Wheel Travel: | 110 mm / 4.3" | 
| Front Brakes: | 2 x 260mm Disc, 2 piston caliper. | 
| Rear Brakes: | Single 200mm drum | 
| Front Tyre: | 1.85 - B18 | 
| Rear Tyre: | 2.50 - B18 | 
| Dry Weight: | 185 kg / 408 lbs | 
| Fuel Capacity: | 22 Litres / 5.8 US gal | 
