2026 Yamaha YZ450F – First Look
Select YZ models get 70th Anniversary Editions
Yamaha has updated its YZ450F flagship motocross race bike for 2026, designing a new frame, updating the engine, and revising the suspension. The 2026 YZ450F arrives in U.S. dealerships in August in Yamaha Blue, with an MSRP of $10,299, but if you don’t mind waiting a couple of months, you can get a 70th Anniversary Edition in white and red speed block livery in October for $10,499, recognizing the founding of the Yamaha Motor Company on July 1, 1955.
For 2026, Yamaha revised the inner and outer structure of the frame with the goal of balancing rigidity and flex. The front downtube, specifically, is thinner, with Yamaha claiming a stable ride with improved front-end feel.
To match the new frame, Yamaha worked with KYB to revise the fork settings and update the rear shock with a new hand-operated low-speed compression clicker. Yamaha says the suspension changes enhance damping feel.
Put together, Yamaha says the chassis updates result in a bike that’s easier to tip in and hold a line through a corner.
The 450cc liquid-cooled, DOHC, four-stroke Single retains its reverse-slanted cylinder design, but receives a new intake port designed to produce a stronger tumble effect for more efficient combustion, with Yamaha claiming a more linear engine response. Yamaha also added a duct to the air intake and new resonators to the intake and exhaust to help meet FIM and AMA noise restrictions.
Other changes include a new hydraulic clutch for a lighter lever feel, and a redesigned inner hub to improve lubrication.
The YZ450F continues to use Yamaha’s Power Tuner App for adjustments to the electronics, including engine mapping, traction control settings, and launch control tuning. New for 2026 is an ECU-lock theft deterrent system, which Yamaha claims to be an industry first for an off-road motorcycle. The system allows owners to lock engine start-up behind a password through the Power Tuner App.
Visually, the 2026 YZ450F has a more compact front number plate, new two-piece side covers, and a slimmer tail than the 2025 model. The seat cover is also a new design, with a honeycomb pattern designed to reduce rearward sliding during acceleration without affecting the ability to slide forward.
Joining the YZ450F in Yamaha’s 2026 lineup are the YZ250F, YZ250FX, YZ450FX, WR250F, and WR450F four-stroke models, all receiving the ECU-lock anti-theft function. The YZ450FX cross country model also receives a new four-mode traction control system. The 2026 two-stroke off-road lineup consists of the YZ250, YZ125, YZ85, YZ85LW, and YZ65. All return unchanged except for the YZ125, which receives a new intake design and revised carburetion and CDI settings.
Also returning for 2026 are the TT-R230, TT-R125LE, TT-R110E, and TT-R50E trail bikes and the TW200 dual sport.
2026 Yamaha YZ450F Specifications | |
|---|---|
Engine Type | 450cc liquid-cooled DOHC 4-stroke; 4 titanium valves |
Bore x Stroke | 97.0mm × 60.8mm |
Compression Ratio | 13.0:1 |
Fuel Delivery | Mikuni fuel injection, 44mm |
Transmission | Constant-mesh 5-speed; multiplate wet clutch |
Final Drive | Chain |
Fuel Capacity | 1.6 gal |
Front Suspension | KYB spring-type fork with speed sensitive damping; fully adjustable, 12.2-in travel |
Rear Suspension | KYB single shock; fully adjustable, 11.6-in travel |
Front Brake | Hydraulic disc, 270mm |
Rear Brake | Hydraulic disc, 240mm |
Front Tire | 80/100-21 Dunlop Geomax MX33F |
Rear Tire | 120/80-19 Dunlop Geomax MX33 |
Length | 85.6 inches |
Width | 32.5 inches |
Height | 50.2 inches |
Seat Height | 38.0 inches |
Wheelbase | 58.1 inches |
Rake / Trail | 27.5° / 4.8 inches |
Ground Clearance | 13.6 inches |
Fuel Capacity | 1.6 gallons |
Wet Weight | 243 pounds (claimed) |
2026 Yamaha YZ450F First Look Gallery
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Dennis has been a part of the Motorcycle.com team since 2008, and through his tenure, has developed a firm grasp of industry trends, and a solid sense of what's to come. A bloodhound when it comes to tracking information on new motorcycles, if there's a new model on the horizon, you'll probably hear about it from him first.
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Nice bike. I really like the white anniversary color scheme. Reminds me of the 1990s when they brought the white over to the USA from Europe, when they were previously a yellow brand like Suzuki. White at the time was only sold in Europe.
Interesting, that Yamaha still continues to produce a line of two-stroke dirt bikes as mentioned in the article. All dirt bike manufactures should offer a two-stroke option in my opinion as they are lighter and more powerful with easier maintenance.
What I find interesting about the two-strokes is that Yamaha dropped all of their two-stroke snowmobile engines in the early 2000's, going against the industry trend and popularity. It cited the environment as its main factor. Ultimately, going four-stroke found few buyers with most being retirees. This contributed to higher costs/prices, made them much heavier sleds compared to the competition, and gave less performance other than turbo models. Ultimately, this led to Yamaha borrowing Arctic Cat chassis' and later a two-stroke engine to try and save them from slow sales, but the inevitable lack of consumer interest continued, which led to their recent demise in the snowmobile world.
Wow! A $12 thousand dirt bike you can’t work on yourself, with thirty hours of engine life, before it goes off like trick cigar. No thanks.