2006 Yamaha YZ 450 F Technical Analysis & Specification Breakdown
Built around Yamaha's cross - motocross motorcycle platform, the 2006 Yamaha YZ 450 F 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 YZ 450 F measures 99.8 kg (220 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 1,495 mm (58.9 in) wheelbase engineered for balanced agility and highway composure. The 7-liter (1.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
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 DetailsV2, four-stroke
Compression12.3:1
Bore x Stroke95.0 x 63.4 mm (3.7 x 2.5 inches)
Fuel SystemCarburettor. Keihin FCR37H
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionCDI
LubricationDry sump
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet, multiple-disc
Chassis
Front SuspensionUpside-down telescopic fork
Front Travel300 mm (11.8 inches)
Rear SuspensionSwingarm (linked type monocross)
Rear Travel125 mm (4.9 inches)
Wheelbase1495 mm (58.9 inches)
Ground Clearance373 mm (14.7 inches)
Wheels & Brakes
Front Tyre80/90-R21
Rear Tyre110/90-19
Front BrakesSingle disc
Front Brake Ø250 mm (9.8 inches)
Rear BrakesSingle disc
Rear Brake Ø245 mm (9.6 inches)
Dimensions & Weight
Dry Weight99.8 kg (220.0 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.
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.
