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					Technical specifications
					
				 | 
			
				| Model: | 690 Duke | 
			
				| Years: | 2009 | 
			
			
					
						| Engine: | Four stroke, single cylinder, SOHC, 4 valves | 
			
					
						| Capacity: | 653.7 cc / 39.91 cu in | 
			
					
						| Bore x Stroke: | 102 x 80 mm | 
			
					
						| Cooling System: | Liquid Cooled | 
			
					
						| Compression Ratio: | 11.8:1 | 
			
					
						| Exhaust: | Stainless steel silencer with regulated catalytic converter | 
			
					
						| Lubrication: | Wet sump | 
			
					
						| Engine Oil: | Synthetic, 15W-50 | 
			
					
						| Induction: | Generation Keihin EMS with EPT (Electric Power Throttle) | 
			
					
						| Ignition: | Kokusan DC-CDI | 
			
					
						| Spark Plug: | NGK LKAR 8AI - 9 | 
			
					
						| Battery: | 12 V / 11.2 Ah | 
			
					
						| Starting: | Electric | 
			
					
						| Max Power: | 46 kW / 65 hp @ 7500 rpm | 
			
					
						| Max Torque: | 65 Nm / 6.6 kgf-m / 47.9 ft-lb @ 6550 rpm | 
			
					
						| Clutch: | APTC multi-disc wet clutch, hydraulically operated | 
			
					
						| Transmission: | 6 Speed | 
			
					
						| Primary Drive Ratio: | 36:79 | 
			
					
						| Gear Ratios: | 1st 14:35 / 2nd 16:28 / 3rd 21:28 / 4th 21:23 / 5th 23:22 / 6th 23:20 | 
			
					
						| Final Drive: | Chain X-Ring 5/8 x 5/16" | 
			
					
						| Frame: | Chromoly trellis frame, powder-coated, aluminium sub frame | 
			
					
						| Front Suspension: | WP Upside-down forks, 4860 ROMA | 
			
					
						| Front Wheel Travel: | 140 mm / 5.5 in | 
			
					
						| Rear Suspension: | WP monoshock, 4618 with Pro-lever deflector | 
			
					
						| Rear Wheel Travel: | 140 mm / 5.5 in | 
			
					
						| Front Brakes: | Single 320 mm floating disc, radially screwed four-piston brake caliper | 
			
					
						| Rear Brakes: | Single 240 mm floating disc, single piston caliper | 
			
					
						| Front Rim: | Cast aluminium wheels 3.5 x 17" | 
			
					
						| Rear Rim: | Cast aluminium wheels 5.5 x 17" | 
			
					
						| Front Tyre: | 120/70 - R17 | 
			
					
						| Rear Tyre: | 160/60 - R17 | 
			
					
						| Steering Head Angle: | 63.5° | 
			
					
						| Trail: | 100.7 mm / 3.96 in | 
			
					
						| Wheel base: | 1472 mm / 57.9 in | 
			
					
						| Ground Clearance: | 155 mm / 6.1 in | 
			
					
						| Seat Height: | 865 mm / 34 in | 
			
					
						| Dry Weight: | 148.5 kg / 327 in | 
			
					
						| GVWR: | 350 kg / 772 lbs | 
			
					
						| Engine Oil Capacity: | 1.7 L / 1.8 US qt / 1.5 Imp qt | 
			
					
						| Fuel Capacity: | 13.5 Litres / 3.6 US gal / 3.0 Imp gal |