Aprilia RS 660 Base vs Derbi Mulhacen 659 X-Vision (2026)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Aprilia RS 660 Basestacks up against the Derbi Mulhacen 659 X-Vision. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Aprilia RS 660 Base | Derbi Mulhacen 659 X-Vision |
|---|---|---|
| Model year | 2026 | 2007 |
| Price | $11,749 | — |
| Engine | 659 cc | 660 cc |
| Weight | 183 kg | 165 kg |
| Seat height | 820 mm | 32 mm |
| Fuel capacity | 15.0 L | 3.4 L |
| Fuel type | petrol | petrol |
| Transmission | Manual, 6 speed, Chain | 5-speed |
| Front brakes | Dual Hydraulic Disc | Single disc |
| Rear brakes | Hydraulic Disc | Single disc |
| Tires | Pirelli® Diablo Rosso Corsa IV 120/70 R17 / Pirelli® Diablo Rosso Corsa IV 180/55 R17 | 110/80-18 / 150/70-18 |
Aprilia RS 660 Base vs Derbi Mulhacen 659 X-Vision — which should you buy?
Picking between the Aprilia RS 660 Base and the Derbi Mulhacen 659 X-Vision usually comes down to the numbers you care about most. On paper, the Aprilia RS 660 Base brings its published horsepower in a 183 kg package, while the Derbi Mulhacen 659 X-Vision counters with its own power figure at 165 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: