Rieju Marathon 125 Pro vs Orion RFZ Thunder 125 (2023)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Rieju Marathon 125 Prostacks up against the Orion RFZ Thunder 125. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Rieju Marathon 125 Pro | Orion RFZ Thunder 125 |
|---|---|---|
| Model year | 2023 | 2022 |
| Price | — | — |
| Engine | 125 cc | 125 cc |
| Horsepower | 15 hp | — |
| Weight | 121 kg | 75 kg |
| Seat height | 35 mm | 32 mm |
| Fuel capacity | 1.7 L | 0.9 L |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 4-speed |
| Front brakes | Single disc. Galfer wave disc with double piston caliper | Single disc |
| Rear brakes | Single disc. Galfer Wave | Single disc |
| Tires | 90/90-21 / 120/90-18 | 60/100-14 / 80/100-12 |
Rieju Marathon 125 Pro vs Orion RFZ Thunder 125 — which should you buy?
Picking between the Rieju Marathon 125 Pro and the Orion RFZ Thunder 125 usually comes down to the numbers you care about most. On paper, the Rieju Marathon 125 Pro brings 15 hp in a 121 kg package, while the Orion RFZ Thunder 125 counters with its own power figure at 75 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:

