Kuba RX9 vs Tomos Flexer 25 SM (2020)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Kuba RX9stacks up against the Tomos Flexer 25 SM. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Kuba RX9 | Tomos Flexer 25 SM |
|---|---|---|
| Model year | 2020 | 2016 |
| Price | — | $1,099 |
| Engine | 49 cc | 49 cc |
| Horsepower | 3 hp | — |
| Torque | 4 Nm | — |
| Weight | 78 kg | 55 kg |
| Seat height | — | 32 mm |
| Fuel capacity | 1.6 L | 0.9 L |
| Fuel type | petrol | petrol |
| Transmission | — | 2-speed |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | 2.75-17 / 2.50-17 | 2.50-16 / 2.50-16 |
Kuba RX9 vs Tomos Flexer 25 SM — which should you buy?
Picking between the Kuba RX9 and the Tomos Flexer 25 SM usually comes down to the numbers you care about most. On paper, the Kuba RX9 brings 3 hp in a 78 kg package, while the Tomos Flexer 25 SM counters with its own power figure at 55 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: