Light, slim and powerful engine
This is the most powerful engine ever used in the YZ450F. Featuring a special piston, slanted cylinder and dry sump lubrication system, this lightweight and compact 450cc 4-stroke reverse-head engine delivers strong and linear power that gives you plenty of easy-to-control performance at all engine speeds.
High-capacity air intake
A key feature on the YZ450F is its front facing intake that gives you a real competitive advantage. For winning performance the intake port is designed to give a straight path to the cylinder head. Together with large 39mm titanium inlet valves, this high-e ciency intake enables the engine to rev higher for increased performance.
Disc spring clutch with enhanced cooling e ciency
To handle the high levels of power the YZ450F is equipped with a durable and compact one-piece steel clutch that minimizes engine weight and keeps engine width to a minimum. Disc springs are used instead of conventional coil springs, giving accurate feel and a light pull at the lever.
Lightweight balancer mechanism
For smooth power delivery and minimized vibration at all engine speeds the YZ450F bene ts from a balancer mechanism. Featuring a single balancer weight and hollow shaft, this compact design helps to make the latest generation one of the lightest in its class.
Aluminium bilateral beam frame
The YZ450F’s aluminium bilateral beam is designed to handle the high performance of the latest generation 450cc reversehead engine. The rigidity of the tank rails is optimized to give a controlled amount of ex for e ective shock absorption – and the sti down tube and cross tube ensure high levels of stability and precise cornering.
Seamless ergonomic bodywork
The lightweight fenders, sidepanels and airbox cover blend seamlessly, and the narrow shrouds together with the bike’s slim waist enable rapid body weight shifting for more e ective handling performance. And for optimum controllability the YZ450F features a at upper surface running from the rear of the seat through to front of the airbox.
Engine Engine type 4-stroke;Liquid-cooled;DOHC;4-valves;Single cylinder Displacement 450cc Bore x stroke 97,0 × 60,8 mm Compression ratio 13,0 : 1 Lubrication system Dry sump Clutch type Wet;Multiple Disc Ignition system TCI Starter system Electric Transmission system Constant Mesh;5-speed Final transmission Chain Fuel system Fuel Injection Chassis Frame Semi double cradle Front suspension system Telescopic fork Front travel 310 mm Rear suspension system link suspension;Swingarm Rear travel 295 mm Front brake Hydraulic Single Disc, Ø270 mm Rear brake Hydraulic Single Disc, Ø240 mm Front tyre 80/100-21 51M Tube type Rear tyre 120/80-19 63M Tube type Caster angle 26°55′ Trail 120 mm Dimensions Overall length 2.180 mm Overall width 825 mm Overall height 1.275 mm Seat height 965 mm Wheel base 1.480 mm Minimum ground clearance 350 mm Wet weight (including full oil and fuel tank) 109 kg Fuel tank capacity 6,2 L Oil tank capacity 1,2 L
