Yamaha YZ450F - 2011 Specifications and Reviews

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General information

Category:Cross / motocross
Year:2011
Model:Yamaha YZ450F
   

Engine and Transmission Specifications

Transmission type,final drive:Chain
Gearbox:5-speed
Cooling system:Liquid
Lubrication system:Dry sump
Ignition:CDI
Fuel control:DOHC
Fuel system:Injection. Yamaha Fuel Injection (YFI), Keihin 44mm
Valves per cylinder:4
Bore x stroke:97.0 x 60.8 mm (3.8 x 2.4 inches)
Compression:12.5:1
Engine details:Titanium valves
Engine type:Single cylinder, four-stroke
Capacity:449.00 ccm (27.40 cubic inches)
   

Brakes, suspension, Frame and wheels

Rear brakes diameter:245 mm (9.6 inches)
Rear brakes:Single disc
Front brakes diameter:250 mm (9.8 inches)
Front brakes:Single disc
Rear tyre dimensions:120/80-19
Front tyre dimensions:80/100-21
Rear suspension travel:315 mm (12.4 inches)
Rear suspension:KYB Fully adjustable single shock
Front suspension:KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel

Physical measures and capacities

Oil capacity:1.20 litres (0.08 quarts)
Fuel capacity:6.17 litres (1.63 gallons)
Wheelbase:1,491 mm (58.7 inches)
Ground clearance:381 mm (15.0 inches)
Overall width:823 mm (32.4 inches)
Overall length:2,192 mm (86.3 inches)
Overall height:1,311 mm (51.6 inches)
Seat height:998 mm (39.3 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc:111.1 kg (245.0 pounds)

Other specs

Light:Dual 30W Krypton multireflector Headlights and 3.9/0.5W LED Brake light
Wheelbase:1,270 mm (50.0 inches)
Rear tyre:20/10-9
Front tyre:21/7-10
Rear Suspension:Cast aluminum swingarm w/piggyback High/Low speed compression, rebound and threaded preload adjustment, 11.0-in travel
Front Suspension:Independent double wishbone, w/Kashima coated piggyback shocks, High/Low speed compression, rebound
Driveline:2WD; Sealed O-Ring Chain, Eccentric Adjustment
Bore x Stroke:95.0 x 63.4 mm (3.7 x 2.5 inches)
Compression:11.6:1
Model:Yamaha YFZ450X SE
Modifications compared to previous model:New clutch lever and pushrod for more consistent clutch feel during long motos.
Color options:White/Red, Team Yamaha Blue/White)
Factory warranty:30 Day (Limited Factory Warranty)
Starter:Electric

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