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					Technical specifications
					
				 | 
			
				| Model: | 620 Duke | 
			
				| Years: | 1997 | 
			
			
					
						| Engine: | Four stroke, single cylinder, SOHC, 4 valves | 
			
					
						| Capacity: | 609 cc / 37.2 cu in | 
			
					
						| Bore x Stroke: | 101 x 76 mm | 
			
					
						| Compression Ratio: | 10.4:1 | 
			
					
						| Cooling System: | Liquid cooled | 
			
					
						| Induction: | Dell'Orto PHM 40 SD carburetor | 
			
					
						| Ignition: | KDC-CDI | 
			
					
						| Starting: | Kick | 
			
					
						| Max Power: | 40.1 kW / 55 hp @ 7000 rpm | 
			
					
						| Max Torque: | 60 Nm / 6.1 kgf-m / 44.3 lb-ft @ 5500 rpm | 
			
					
						| Transmission: | 5 Speed | 
			
					
						| Final Drive: | Chain | 
			
					
						| Front Suspension: | White Power 4054 Top Adjuster | 
			
					
						| Front Wheel Travel: | 142 mm / 5.6 in | 
			
					
						| Rear Suspension: | White Power monoshock 4681 BAVP Single Adjuster | 
			
					
						| Rear Wheel Travel: | 170 mm / 6.7 in | 
			
					
						| Front Brakes: | Single 320 mm disc, 4 piston caliper | 
			
					
						| Rear Brakes: | Single 220 mm disc, 1 piston caliper | 
			
					
						| Front Wheel: | 3.50 x 17, wire spoked | 
			
					
						| Rear Wheel: | 4.50 x 17, wire spoked | 
			
					
						| Front Tyre: | 120/70 - 17 Pirelli MT60 | 
			
					
						| Rear Tyre: | 160/60-17 Pirelli MT60 | 
			
					
						| Seat Height: | 894 mm / 35.2 in | 
			
					
						| Dry Weight: | 145 kg / 320 lbs | 
			
					
						| Fuel Capacity: | 10.3 Litres / 2.7 US gal / 2.3 Imp gal | 
			
					
						| Fuel Reserve: | 1.8 L / 1.9 US qt / 1.6 Imp qt | 
			
					
						| Consumption Average: | 6.4 L/100 km / 15.7 km/l / 37 US mpg / 44.4 Imp mpg | 
			
					
						| Braking 100 km/h - 0: | 36 m / 118 ft | 
			
					
						| Standing ¼ Mile: | 13.1 sec / 156 km/h / 97 mph | 
			
					
						| Top Speed: | 169 km/h / 105 mph |