2004 Yamaha WR 450 F Technical Analysis & Specification Breakdown
Engineered by Yamaha for the enduro - offroad motorcycle segment, the 2004 Yamaha WR 450 F features a 449 cc (27.4 cu in) liquid-cooled single cylinder, four-stroke configuration. Internal engine geometry specifies a bore and stroke of 95.0 x 63.4 mm (3.7 x 2.5 inches) with a 12.5:1 compression ratio.
On the scales, the WR 450 F measures 105.5 kg (233 lbs) dry. Rider ergonomics and chassis geometry center around a 998 mm (39.3 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,485 mm (58.5 in) wheelbase engineered for balanced agility and highway composure.
Within MotoLibrary's Yamaha archive, this model family spans 4 indexed model years from 2004 to 2007, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
998 mm (39.3 in)
Engine
Displacement449.0 ccm (27.40 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression12.5:1
Bore x Stroke95.0 x 63.4 mm (3.7 x 2.5 inches)
Valves/Cylinder5
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingLiquid
Chassis
Front SuspensionTelescopic fork
Front Travel300 mm (11.8 inches)
Rear SuspensionSwingarm (linked type suspension)
Rear Travel315 mm (12.4 inches)
Wheelbase1485 mm (58.5 inches)
Ground Clearance371 mm (14.6 inches)
Wheels & Brakes
Front Tyre90/90-21
Rear Tyre130/90-18
Front BrakesSingle disc
Front Brake Ø250 mm (9.8 inches)
Rear BrakesSingle disc
Rear Brake Ø245 mm (9.6 inches)
Dimensions & Weight
Dry Weight105.5 kg (232.6 pounds)
Seat Height998 mm (39.3 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.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
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.
