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					Technical specifications
					
				 | 
			
				| Model: | 644 Supermotard | 
			
				| Years: | 2002-08 | 
			
			
					
						| Engine: | Single cylinder, OHC, four stroke, four valves | 
			
					
						| Capacity: | 644 cc / 39.3 cu in | 
			
					
						| Bore x Stroke: | 100 x 82 mm | 
			
					
						| Compression Ratio: | 9.3:1 | 
			
					
						| Cooling System: | Air/oil cooled | 
			
					
						| Induction: | 2 x Mikuni BSR32 carburetors | 
			
					
						| Ignition: | CDI | 
			
					
						| Starting: | Electric | 
			
					
						| Max Power: | 38.6 kW / 53 hp @ 7500 rpm | 
			
					
						| Max Torque: | 52.5 Nm / 5.4 kgf-m / 38.7 ft.lb @ 6000 rpm | 
			
					
						| Transmission: | 5 Speed | 
			
					
						| Final Drive: | Chain | 
			
					
						| Frame: | Tubular steel cradle | 
			
					
						| Front Suspension: | Paioli Ø46 mm conventional forks, fully adjustable | 
			
					
						| Rear Suspension: | WP piggyback, adjustable compression rebound and reload | 
			
					
						| Front Brakes: | Single Ø320 mm disc, 4 piston caliper | 
			
					
						| Rear Brakes: | Single Ø220 mm disc, 1 piston caliper | 
			
					
						| Front Tyre: | 120/60-17 | 
			
					
						| Rear Tyre: | 150/60-17 | 
			
					
						| Dry Weight: | 137 kg / 302 lbs | 
			
					
						| Seat Height: | 865 mm / 34.1" | 
			
					
						| Fuel Capacity: | 13.6 L / 3.6 US gal |