YZ450FX

449cc4-stroke1 cylLiquid-cooledElectric start

About the YZ450FX

A cross-country racing version of the YZ450F with electric start, wide-ratio gearing and off-road suspension. Built for GNCC, hare scramble and desert racers.

Family: YZ450F/FX & YZ400F/426F
Model years: 2016 – present
Also known as: YZ 450 FX

11 sources

Generations

2027 – present

YZ450FXCurrent

Redesign with a new YZ450F-derived frame, hydraulic clutch and retuned KYB suspension.

Engine: 449cc
Cooling: Liquid-cooled
Starter: Electric start
Gearbox: 5-speed
Fuel: Fuel injection

4 sources

2024 – 2026

YZ450FX

All-new model on the 2023 YZ450F dry-sump engine and frame.

Engine: 449cc
Cooling: Liquid-cooled
Starter: Electric start
Gearbox: 5-speed
Fuel: Fuel injection

3 sources

2019 – 2023

YZ450FX

Moved to the 2018-type YZ450F engine and bilateral-beam frame, shared with the 2019 WR450F.

Engine: 449cc
Cooling: Liquid-cooled
Starter: Electric start
Gearbox: 5-speed
Fuel: Fuel injection

4 sources

2016 – 2018

YZ450FX

Launched on the reverse-cylinder YZ450F engine with off-road gearing and suspension.

Engine: 449cc
Cooling: Liquid-cooled
Gearbox: 5-speed
Fuel: Fuel injection

3 sources

Year specs

Year

Engine: 449 cc
Bore × stroke: 97 × 60.8 mm
Cooling: Liquid-cooled
Starter: Electric start
Gearbox: 5-speed
Fuel system: Fuel injection
Horsepower: —
Torque: —
Dry weight: —
Wet weight: 112.9 kg
Seat height: 955 mm
Ground clearance: 330 mm
Wheelbase: 1471 mm
Fuel capacity: 7.9 L
MSRP: $10,499

engine_cc computed from the cited bore x stroke.

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