Aprilia RX 50 Racing vs Rieju 50 MRX Castrol (2006)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Aprilia RX 50 Racingstacks up against the Rieju 50 MRX Castrol. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Aprilia RX 50 Racing | Rieju 50 MRX Castrol |
|---|---|---|
| Model year | 2006 | 2005 |
| Price | — | — |
| Engine | 50 cc | 50 cc |
| Horsepower | — | 8 hp |
| Weight | 98 kg | — |
| Seat height | 37 mm | — |
| Fuel capacity | 2.5 L | 2.2 L |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | 6-speed |
| Front brakes | Single disc | Single disc. 2 piston calipers |
| Rear brakes | Single disc | Single disc |
| Tires | 80/90-21 / 110/80-18 | 80/90-21 / 110/80-18 |
Aprilia RX 50 Racing vs Rieju 50 MRX Castrol — which should you buy?
Picking between the Aprilia RX 50 Racing and the Rieju 50 MRX Castrol usually comes down to the numbers you care about most. On paper, the Aprilia RX 50 Racing brings its published horsepower in a 98 kg package, while the Rieju 50 MRX Castrol counters with 8 hp.
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:

