Key Features

• Versatile off-roader aimed at enduro racers and fast trail riders
  • The WR450F harnesses the power of Yamaha's flagship YZ450F MX bike for increased off-road confidence and control. A light and compact machine with linear, controllable power delivery that is easy to use in the low to mid range with a flex-tuned chassis and suspension settings specified for the toughest off-road conditions 
• Aluminum Bilateral Beam Frame
• Lightweight Hydraulic  Clutch
• New High Performance 450cc Four-Stroke Engine
• New Rear Suspension
• New Lightweight Rear Brake Assembly
• Optimized Magneto Rotor

ENGINE

New High Performance 450cc Four-Stroke Engine

The 450cc liquid-cooled DOHC four-stroke engine is light, compact and features strong pulling power across the entire rev range. YZ450F-based engine produces seamless, linear power from low to mid range to make the bike easy to control in technical off-road situations.

Lightweight Hydraulic  Clutch

No adjustment required for the light pull hydraulically-operated clutch. Disc spring clutch is a compact, lightweight and durable assembly that yields smooth engagement and excellent feel. 

Wide-Ratio Five-Speed Transmission

The WR450F’s wide-ratio 5-speed transmission provides a gear for any off-road location, from tight technical sections to open fields and fire roads. The tri-shaft transmission layout vertically stacks the transmission shafts, raising the centre shaft and forming a triangle between the crank, drive shaft and main shaft for a light and compact transmission.

Optimized Magneto Rotor

The AC magneto's inertial mass is increased for stable and confidence-inspiring riding feel on low speed tight trails with enhanced engine stall resistance.

CHASSIS/SUSPENSION

Aluminum Bilateral Beam Frame

An aluminum bilateral beam frame with WR450F-specific engine mounts produces the right combination of strength and flex for the perfect balance of straight-line stability and cornering performance. The result is a superb-handling machine with light feel, high agility and plenty of traction, allowing the rider to tackle tight, technical trails with supreme confidence.

New Lightweight Rear Brake Assembly

Rear brake master cylinder diameter, piston diameter and brake disc diameter are all shrunk to lose weight and enhance rear brake controllability.

New Rear Suspension

Revised compression damping and hand adjustable slow-speed compression damper ensures a comfortable ride and high-speed stability.

Revised drive sprocket

Rear drive sprocket has one extra tooth (50T to 51T) for improved power delivery on fast flowing trails.

ADDITIONAL FEATURES

Full Cover Bashplate
Smooth, full design protects the lower frame, engine covers and coolant hoses.

Slim Body and Rider-Friendly Ergos
A slim, compact and flat body eases rider movement for machine control, including a honeycomb pattern seat with seamless, rounded edges, side covers and narrow front shrouds.

High Performance Details
WR450F boasts a wide range of additional top-spec details carried over from the competition-tested YZ450F including rubber-mounted, four-position adjustable handlebar clamps, aluminum tapered handlebars and wide footpegs.

Rider Convenience
WR405F features enduro-developed components including 7.4 litre fuel capacity, multi-function meter with fuel and engine warning lights, 18-inch rear wheel, composite engine guard, sealed O-ring chain and a folding aluminum kickstand.

Flat Honeycomb Seat with Rounded Edges
Honeycomb seat material helps ease forward movement and hinder rearward movement, while a flat shape and rounded edges promote freedom in riding position.

Embedded Graphics
Premium embedded graphics are built into the bodywork for extended durability, resisting both peeling and damage.