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Here’s a summary of the 2026 Yamaha YZ450F — what’s new, the specs, and what makes it stand out. If you like, I can pull up pros & cons or how it compares to a similar bike.
Frame Update: Redesigned frame (inner & outer structure) with a thinner front downtube. The idea is to better balance rigidity and flex, to improve front‑end feel and stability. Motorcycle+2MCNews+2
Suspension Tweaks: Revised fork settings, and a new KYB rear shock that includes a hand‑operated low‑speed compression clicker. Meant to give more control over damping, especially in jumps or rough terrain. Yamaha Motorsports+2Motorcycle+2
Engine / Intake Changes: A redesigned intake port to produce stronger tumble (better mixing of air/fuel) aiming for more efficient combustion. Also updated intake & exhaust / air‑intake ducting‑resonators to meet noise regs and smooth out throttle response. Motorcycle+2Yamaha Motorsports+2
Hydraulic Clutch: New standard hydraulic clutch for smoother lever feel & more consistent engagement. Also a new clutch hub design for better lubrication / durability. Motorcycle+1
ECU Lock / Security Feature: First in this class — you can lock engine start via password using Yamaha’s Power Tuner App. Helps with theft prevention. Motorcycle+1
Styling / Ergonomics Updates: Slimmer front number plate; new two-piece side covers; sharper rear fender; new “honeycomb” seat cover material that holds better under acceleration (so you slide forward easier but less so backward). Motorcycle+1
| Component | Spec |
|---|---|
| Engine Type | 450 cc liquid‑cooled DOHC 4‑stroke, 4 titanium valves. Yamaha Motorsports+1 |
| Bore × Stroke | 97.0 mm × 60.8 mm Yamaha Motorsports+1 |
| Compression Ratio | ~ 13.0:1 Yamaha Motorsports+1 |
| Fuel Delivery | Mikuni 44 mm fuel injection. Yamaha Motorsports+1 |
| Transmission | 5‑speed constant mesh; multip‑late wet clutch (now hydraulic) Yamaha Motorsports+1 |
| Front Suspension | KYB spring‑type fork, speed sensitive damping; fully adjustable; ~12.2 in travel. Yamaha Motorsports+1 |
| Rear Suspension | KYB single shock; fully adjustable; ~11.6 in travel. Yamaha Motorsports+1 |
| Brakes | Front: 270 mm disc; Rear: 240 mm disc. Yamaha Motorsports+1 |
| Tires | Dunlop Geomax MX33 – front (80/100‑21), rear (120/80‑19) Yamaha Motorsports+1 |
| Seat Height | ~ 38.0 in Yamaha Motorsports+1 |
| Ground Clearance | ~ 13.6 in Yamaha Motorsports+1 |
| Wet Weight | ~ 243 lb (with all fluids, full tank) Yamaha Motorsports+1 |
| Fuel Capacity | ~ 1.6 gallons |
Advertised pricing excludes applicable taxes title and licensing and are subject to change without notice. Pricing may exclude any added parts, accessories or installation unless otherwise noted. Sale prices include all applicable offers. Not all options listed available on pre-owned models. Contact dealer for details.
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Here’s a summary of the 2026 Yamaha YZ450F — what’s new, the specs, and what makes it stand out. If you like, I can pull up pros & cons or how it compares to a similar bike.
What’s New for 2026
Frame Update: Redesigned frame (inner & outer structure) with a thinner front downtube. The idea is to better balance rigidity and flex, to improve front‑end feel and stability. Motorcycle+2MCNews+2
Suspension Tweaks: Revised fork settings, and a new KYB rear shock that includes a hand‑operated low‑speed compression clicker. Meant to give more control over damping, especially in jumps or rough terrain. Yamaha Motorsports+2Motorcycle+2
Engine / Intake Changes: A redesigned intake port to produce stronger tumble (better mixing of air/fuel) aiming for more efficient combustion. Also updated intake & exhaust / air‑intake ducting‑resonators to meet noise regs and smooth out throttle response. Motorcycle+2Yamaha Motorsports+2
Hydraulic Clutch: New standard hydraulic clutch for smoother lever feel & more consistent engagement. Also a new clutch hub design for better lubrication / durability. Motorcycle+1
ECU Lock / Security Feature: First in this class — you can lock engine start via password using Yamaha’s Power Tuner App. Helps with theft prevention. Motorcycle+1
Styling / Ergonomics Updates: Slimmer front number plate; new two-piece side covers; sharper rear fender; new “honeycomb” seat cover material that holds better under acceleration (so you slide forward easier but less so backward). Motorcycle+1
Key Specs