These are the known mechanical and performance specifications for your 2011 Yamaha YZ450F.
Basic Specs
Engine
Displacement449.00 ccm (27.40 cubic inches)
TypeTitanium valves
DetailsSingle cylinder, four-stroke
Max RPM
Compression12.5:1
Bore/Stroke97.0 x 60.8 mm (3.8 x 2.4 inches)
Valves/Cylinder4
FuelingInjection. Yamaha Fuel Injection (YFI), Keihin 44mm
IgnitionCDI
Exhaust
LubricationDry sump
CoolingLiquid
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity6.17 litres (1.63 gallons)
Emissions
Chassis
Frame Type
Rake
Trail
Front SuspensionKYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel
Front Travel
Rear SuspensionKYB Fully adjustable single shock
Rear Travel315 mm (12.4 inches)
Seat
Seat Height998 mm (39.3 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1,311 mm (51.6 inches)
Total Length2,192 mm (86.3 inches)
Total Width823 mm (32.4 inches)
Ground Clearance381 mm (15.0 inches)
Wheelbase1,491 mm (58.7 inches)
Dry Weight
Wet Weight111.1 kg (245.0 pounds)
Wheels & Brakes
Front Tire/Tyre80/100-21
Rear Tire/Tyre120/80-19
Front BrakesSingle disc
Front Brake Diameter250 mm (9.8 inches)
Rear BrakesSingle disc
Rear Brake Diameter245 mm (9.6 inches)
Wheels
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