Yamaha YZ 250FX vs Kayo K4 250 (2026)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Yamaha YZ 250FXstacks up against the Kayo K4 250. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Yamaha YZ 250FX | Kayo K4 250 |
|---|---|---|
| Model year | 2026 | 2025 |
| Price | $9,099 | — |
| Engine | 250 cc | 250 cc |
| Weight | 110 kg | — |
| Seat height | 955 mm | — |
| Fuel capacity | 7.0 L | — |
| Fuel type | petrol | petrol |
| Transmission | Manual, 6 speed, Chain | — |
| Front brakes | Hydraulic Disc | — |
| Rear brakes | Hydraulic Disc | — |
| Tires | Dunlop® Geomax MX33F 80/100 R21 / Dunlop® Geomax MX33 110/100 R18 | 80/100-21 / 110/90-19 |
Yamaha YZ 250FX vs Kayo K4 250 — which should you buy?
Picking between the Yamaha YZ 250FX and the Kayo K4 250 usually comes down to the numbers you care about most. On paper, the Yamaha YZ 250FX brings its published horsepower in a 110 kg package, while the Kayo K4 250 counters with its own power figure.
Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: