Beta RR 450 4-Stroke vs Kawasaki KX™ 450X (2026)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Beta RR 450 4-Strokestacks up against the Kawasaki KX™ 450X. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Beta RR 450 4-Stroke | Kawasaki KX™ 450X |
|---|---|---|
| Model year | 2007 | 2026 |
| Price | — | $10,699 |
| Engine | 448 cc | 449 cc |
| Weight | 118 kg | 109 kg |
| Seat height | 37 mm | 950 mm |
| Fuel capacity | 2.3 L | 6.0 L |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | Manual, 5 speed, Chain |
| Front brakes | Single disc. Floating disc ø255 mm and double-piston floating caliper | Disc |
| Rear brakes | Single disc. Disc ø240 mm and single-piston floating caliper | Disc |
| Tires | 90/90-21 / 140/80-18 | Dunlop® Geomax AT18F: 80/100-21 51M / Dunlop® Geomax AT18 120/80-18 65M |
Beta RR 450 4-Stroke vs Kawasaki KX™ 450X — which should you buy?
Picking between the Beta RR 450 4-Stroke and the Kawasaki KX™ 450X usually comes down to the numbers you care about most. On paper, the Beta RR 450 4-Stroke brings its published horsepower in a 118 kg package, while the Kawasaki KX™ 450X counters with its own power figure at 109 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: