Manufacturer          Yamaha    
 Model Year          2010    
 Model          YZ450F    
 DIMENSIONS    
 Length          86.3 in.    
 Height          51.6 in.    
 Width          32.4 in.    
 Weight          245 lbs.    
 Ground Clearance          15 in.    
 Wheelbase          58.7 in.    
 Seat Height          39.3 in.    
 ENGINE    
 Engine          4 titanium valves, DOHC, 4-stroke    
 Displacement          449 cc    
 Bore x Stroke          97 x 60.8 mm    
 Compression Ratio          12.5:1    
 Carburetion          Yamaha Fuel Injection (YFI), Keihin 44 mm    
 Fuel Capacity          1.6 gal.    
 Ignition          CDI    
 Clutch          Multi-plate wet    
 Cooling          Liquid-cooled    
 DRIVETRAIN    
 Transmission          Constant-mesh 5-speed    
 Final Drive          Chain    
 BRAKES/WHEELS/TIRES    
 Brakes          Front: 250 mm hydraulic single disc
Rear: 245 mm hydraulic single disc    
 Tires          Front: 80/100-21-Dunlop D-742FA
Rear: 120/80-19-Dunlop  D-756    
 OPERATIONAL    
 Suspension          Front: KYB Speed-Sensitive System, inverted fork; fully adjustable; 12.2 in. travel
Rear: KYB® fully adjustable single shock; 12.4 in. travel    
 OTHER    
 Color:          Two-tone White / Red