Beta RR X-Pro 390 4-Stroke vs Beta RR 4T 400 (2026)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Beta RR X-Pro 390 4-Strokestacks up against the Beta RR 4T 400. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Beta RR X-Pro 390 4-Stroke | Beta RR 4T 400 |
|---|---|---|
| Model year | 2026 | 2020 |
| Price | $2,026 | — |
| Engine | 385 cc | 385 cc |
| Weight | 107 kg | 108 kg |
| Seat height | 934 mm | 37 mm |
| Fuel capacity | 9.0 L | 2.4 L |
| Fuel type | petrol | petrol |
| Transmission | Manual, 6 speed, Chain | 6-speed |
| Front brakes | Hydraulic Disc | Single disc |
| Rear brakes | Hydraulic Disc | Single disc |
| Tires | Maxxis Enduro 21 / Maxxis Enduro 18 | 90/90-21 / 140/80-18 |
Beta RR X-Pro 390 4-Stroke vs Beta RR 4T 400 — which should you buy?
Picking between the Beta RR X-Pro 390 4-Stroke and the Beta RR 4T 400 usually comes down to the numbers you care about most. On paper, the Beta RR X-Pro 390 4-Stroke brings its published horsepower in a 107 kg package, while the Beta RR 4T 400 counters with its own power figure at 108 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: