Enfield Thunderbird TwinSpark - 2009 Specifications and Reviews
   	
		  
	
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| Category | Classic | 
| Year | 2009 | 
| Model | Enfield Thunderbird TwinSpark | 
Engine and Transmission Specifications | 
| Clutch | Wet mulitiplate | 
| Transmission typefinal drive | Chain | 
| Gearbox | 5-speed | 
| Cooling system | Air | 
| Lubrication system | Dry sump | 
| Starter | Electric | 
| Ignition | Dual spark | 
| Fuel control | OHV | 
| Fuel system | Carburettor. BS29/UCAL | 
| Bore x stroke | 70.0 x 90.0 mm (2.8 x 3.5 inches) | 
| Compression | 7.3:1 | 
| Torque | 28.00 | 
| Power | 19.80 | 
| Stroke | 4 | 
| Engine type | Single cylinder | 
| Capacity: | 346.00 ccm (21.11 cubic inches) | 
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Physical measures and capacities | 
| Wheelbase | 1,370 mm (53.9 inches) | 
| Ground clearance | 135 mm (5.3 inches) | 
| Overall width | 780 mm (30.7 inches) | 
| Overall length | 2,120 mm (83.5 inches) | 
| Overall height | 1,080 mm (42.5 inches) | 
| Dry weight | 163.0 kg (359.4 pounds) | 
Enfield Thunderbird TwinSpark dimensions and frame | 
| Rear brakes diameter | 152 mm (6.0 inches) | 
| Rear brakes | Expanding brake (drum brake) | 
| Front brakes diameter | 280 mm (11.0 inches) | 
| Front brakes | Single disc | 
| Rear tyre dimensions | 3.50-19 | 
| Front tyre dimensions | 3.25-19 | 
| Rear suspension travel | 80 mm (3.1 inches) | 
| Rear suspension | Swing arm | 
| Front suspension travel | 130 mm (5.1 inches) | 
| Front suspension | Telescopic fork | 
Speed and acceleration | 
| Power/weight ratio | 0.1215 HP/kg | 
| Top speed | 120.0 km/h (74.6 mph) | 
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Other specs | 
| Color options | Black, red, silver | 
| Fuel capacity | 14.50 litres (3.83 gallons) | 
 
							 
			
					
					
					
				   			 
				 							
										
					
					 
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