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					Technical specifications
					
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				| Model: | CB 450K | 
			
				| Years: | 1970-71 | 
			
			
					
						| Engine: | Four stroke, parallel twin cylinder, DOHC, 2 valves per cylinder | 
			
					
						| Capacity: | 445 cc / 27.1 cu-in | 
			
					
						| Bore x Stroke: | 70 x 57.8 mm | 
			
					
						| Cooling System: | Air cooled | 
			
					
						| Compression Ratio: | 9.0:1 | 
			
					
						| Induction: | 2x 32mm Keihin carburetors | 
			
					
						| Ignition: | Coil with auto-advance, twin contact breaker | 
			
					
						| Starting: | Kick | 
			
					
						| Max Power: | 45 hp / 32.8 kW @ 9000 rpm | 
			
					
						| Max Torque: | 37.4 Nm / 27.6 lb-ft @ 7000 rpm | 
			
					
						| Transmission: | 5 Speed | 
			
					
						| Final Drive: | Chain | 
			
					
						| Frame: | Tubular semi-duplex cradle with single front down-tube | 
			
					
						| Front Suspension: | Telescopic forks with two-way damping. | 
			
					
						| Rear Suspension: | Swing arm, shock absorbers with adjustable preload | 
			
					
						| Front Brakes: | Single disc | 
			
					
						| Rear Brakes: | Drum | 
			
					
						| Front Tyre: | 3.25-19 | 
			
					
						| Rear Tyre: | 3.50-18 | 
			
					
						| Wheelbase: | 1300 mm / 53 in | 
			
					
						| Dry Weight: | 187 kg / 412 lbs | 
			
					
						| Wet Weight: | 204.0 kg / 449.7 lbs | 
			
					
						| Fuel Capacity: | 14 Litres / 3.7 US gal | 
			
					
						| Road Test: | Cycle World 1970 |