Yamaha YZ450FX

Potent Fuel-Injected Engine

A high-compression cylinder head, forged piston, aggressive cam profiles, cylinder geometry and much more work together to give YZ450FX riders the ideal power spread in challenging off-road racing conditions.

Adjustable Engine Mapping

A handlebar-mounted map switch allows the rider to quickly select between preloaded engine maps—loaded and configured in the Power Tuner app—to account for changing track and weather conditions.

Bilateral beam frame

Yamaha’s bilateral beam aluminum frame features main spars, FX-specific engine mounts and an engine mounting position that centralises mass and provides an ideal balance between cornering feel and straight-line confidence.

Compact Body and Seat Design

The YZ450FX features stylish bodywork from tip to tail, including a large 8.2 litre, mass-centralised fuel tank, the body design is narrow for more comfortable knee grip and control feeling, while the narrower and lower seat gives the rider additional room to move aboard the machine.

Yamaha Power Tuner App

Yamaha’s exclusive Power Tuner app puts the flexibility and precision tunability of the GYTR® Power Tuner into your smartphone. Make fueling and ignition timing changes instantly and upload them to the bike via the onboard WiFi system for the ultimate in track-side tuning.

Cross County Features

With the electric starting system, a 8.2L fuel tank, rugged plastic skid plate, 18-inch rear wheel and XC racing tyres, the YZ450FX is ready to win right out of the box.

Engine

Engine Type: Liquid-cooled, 4-stroke, DOHC, 4-valve

Displacement (cc): 450.0

Bore x Stroke (mm): 97.0x 60.9

Compression Ratio: 12.8 : 1

Lubrication System: Wet sump

Fuel Management: Fuel Injection

Ignition: TCI

Starter System: Electric

Fuel Tank Capacity (L): 8.2

Final Transmission: Chain

Transmission: Constant mesh 5-speed

Chassis

Frame Type: Bilateral beam

Suspension Front: Telescopic forks, 310mm travel

Suspension Rear: Swingarm (link suspension), 317mm travel

Brakes Front: Hydraulic single discs, 270mm

Brakes Rear: Hydraulic single disc, 245mm

Tyres Front: 80/100-21 51M

Tyres Rear: 120/90-18 65M

Dimensions

Length (mm): 2175

Width (mm): 825

Height (mm): 1270

Seat Height (mm): 955

Wheelbase (mm): 1480

Ground Clearance (mm): 320

Wet Weight (kg): 116