At the heart of the 2011 Yamaha WR450F enduro - offroad motorcycle, Yamaha pairs a 449 cc (27.4 cu in) liquid-cooled single cylinder, four-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 95.0 x 63.4 mm (3.7 x 2.5 inches) with a 12.3:1 compression ratio.
On the scales, the WR450F measures 121.1 kg (267 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 980 mm (38.6 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,486 mm (58.5 in) wheelbase engineered for balanced agility and highway composure. The 7.95-liter (2.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 19 indexed model years from 2008 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
980 mm (38.6 in)
Engine
Displacement449.0 ccm (27.40 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsFive titanium valves
Compression12.3:1
Bore x Stroke95.0 x 63.4 mm (3.7 x 2.5 inches)
Fuel SystemCarburettor. Keihin FCR 39
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionCDI
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Chassis
Front SuspensionInverted fork
Front Travel300 mm (11.8 inches)
Rear SuspensionSingle shock
Rear Travel305 mm (12.0 inches)
Wheelbase1486 mm (58.5 inches)
Ground Clearance366 mm (14.4 inches)
Wheels & Brakes
Front Tyre80/100-M21
Rear Tyre110/100-M18
Front BrakesSingle disc. Wave
Front Brake Ø250 mm (9.8 inches)
Rear BrakesSingle disc. Wave
Rear Brake Ø245 mm (9.6 inches)
Dimensions & Weight
Weight incl.121.1 kg (267.0 pounds)
Seat Height980 mm (38.6 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
