UM DSR 125 SM vs Rieju Marathon 125 SM Pro (2023)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the UM DSR 125 SMstacks up against the Rieju Marathon 125 SM Pro. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | UM DSR 125 SM | Rieju Marathon 125 SM Pro |
|---|---|---|
| Model year | 2023 | 2023 |
| Price | — | — |
| Engine | 125 cc | 125 cc |
| Horsepower | 15 hp | — |
| Weight | 124 kg | 121 kg |
| Seat height | 34 mm | 34 mm |
| Fuel capacity | 1.7 L | 1.7 L |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 6-speed |
| Front brakes | Single disc. Wave disc. Hydraulic. Radially mounted two-piston fork caliper. | Single disc. Double piston caliper. Galfer wave disk. |
| Rear brakes | Single disc. Wave disc. Hydraulic. Radially mounted two-piston fork caliper. | Single disc. Galfer wave disk. |
| Tires | 100/80-17 / 130/70-17 | 100/80-17 / 130/70-17 |
UM DSR 125 SM vs Rieju Marathon 125 SM Pro — which should you buy?
Picking between the UM DSR 125 SM and the Rieju Marathon 125 SM Pro usually comes down to the numbers you care about most. On paper, the UM DSR 125 SM brings 15 hp in a 124 kg package, while the Rieju Marathon 125 SM Pro counters with its own power figure at 121 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:

