Beta BETA RX 450 vs Yamaha YZ 450FX (2026)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Beta BETA RX 450stacks up against the Yamaha YZ 450FX. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Beta BETA RX 450 | Yamaha YZ 450FX |
|---|---|---|
| Model year | 2025 | 2026 |
| Price | — | $10,199 |
| Engine | 449 cc | 450 cc |
| Weight | — | 113 kg |
| Seat height | — | 955 mm |
| Fuel capacity | — | 7.0 L |
| Fuel type | petrol | petrol |
| Transmission | — | Manual, 5 speed, Chain |
| Front brakes | — | Hydraulic Disc |
| Rear brakes | — | Hydraulic Disc |
| Tires | Maxxis 21 Inch / Maxxis 19 Inch | Dunlop® Geomax MX33F 80/100 R21 / Dunlop® Geomax MX33 120/90 R18 |
Beta BETA RX 450 vs Yamaha YZ 450FX — which should you buy?
Picking between the Beta BETA RX 450 and the Yamaha YZ 450FX usually comes down to the numbers you care about most. On paper, the Beta BETA RX 450 brings its published horsepower, while the Yamaha YZ 450FX counters with its own power figure at 113 kg.
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: