2026Yamaha YZ450F

Rate this bike

42 fields on record

The 2026 Yamaha YZ450F is a high-performance 450cc 4-stroke motocross bike engineered for competitive and advanced amateur riders. Featuring a potent liquid-cooled DOHC engine with 13.0:1 compression and precision fuel injection, it delivers aggressive power and responsive handling. Known for its winning heritage and versatility across varied terrain, the YZ450F combines a lightweight 243-pound chassis with aggressive geometry for unmatched dirt bike performance.

Capacity: 450.0 ccm
Engine: Single, four-stroke
Gearbox: 5-speed
Dry weight: 99.3 kg
Seat height: 965 mm
Power: 56.0 HP (41.2 kW)

⇄ Compare with another bike ＋ Add to garage All model years

What’s new for the 2026 Yamaha YZ450F

vs the 2025

Spec	2025	2026
Torque	44.7 Nm (4.6 kgf-m or 33.0 ft.lbs) @ 7700 RPM	44.5 Nm (4.5 kgf-m or 32.8 ft.lbs)
Wet weight	108.9 kg (240.1 pounds)	110.2 kg (242.9 pounds)

Other years 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail97%

Cornering88%

City riding10%

Daily riding10%

Touring10%

Two-up5%

Track90%

Best for: Built purely for motocross racing and hard off-road riding, excelling on tracks and rough terrain rather than street use.
Built for: Sharp, high-revving, and razor-responsive, it rewards committed, active riding with explosive acceleration and precise cornering manners.
Not ideal for: It is not suited for commuting, touring, passengers, or casual low-speed street riding due to its lack of lights, mirrors, and road-going comfort features.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us

Your height

Inseam (optional)

Units

At 965mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2026 Yamaha YZ450F, with a cramped knee angle of around 85 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 450.0 ccm
Power: 56.0 HP (41.2 kW)
Torque: 44.5 Nm (4.5 kgf-m)
Engine type: Single, four-stroke
Power/weight ratio: 0.5639 HP/kg (dry)
Bore x stroke: 97.0 x 60.8 mm
Compression: 13.0:1
Cooling system: Liquid
Fuel system: Injection
Starting: Electric
Ignition: TCI
Valves per cylinder: 4
Lubrication system: Wet sump

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain
Clutch: Multiplate, wet

Dimensions & weight

Wheelbase: 1476 mm
Overall length: 2175 mm
Overall width: 830 mm
Overall height: 1275 mm
Seat height: 965 mm
Dry weight: 99.3 kg
Wet weight: 110.2 kg
Fuel capacity: 6.10 litres
Ground clearance: 345 mm
Oil capacity: 1.00 litres

Chassis & suspension

Frame: Bilateral beam frame, aluminum
Front suspension: KYB Speed-Sensitive System, inverted fork: fully adjustable
Rear suspension: KYB® single shock; fully adjustable
Front wheel travel: 310 mm
Rear wheel travel: 315 mm
Rake (fork angle): 26.9°
Trail: 122 mm

Brakes & wheels

Front brakes: Single disc. Hydraulic.
Front brakes diameter: 270 mm
Rear brakes: Single disc. Hydraulic.
Rear brakes diameter: 245 mm
Front tyre: 80/100-21
Rear tyre: 120/80-19

Other

Comments: Torque is a rear-wheel dyno figure.

Specs last verified against published sources: October 2026.

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2004	2010	2016	2021	2026	2027
Capacity	449 cc	449 cc	449 cc	449 cc	450 cc	450 cc
Dry weight	97 kg	99 kg	99 kg	99 kg	99 kg	99 kg
Seat height	995 mm	998 mm	975 mm	965 mm	965 mm	965 mm
Fuel capacity	6.8 L	6.1 L	7.6 L	6.1 L	6.1 L	6.1 L