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					Technical specifications
					
				 | 
			
				| 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 |