Yamaha Big Bear 250 vs BamX BX250-S1 Assault (2011)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Yamaha Big Bear 250stacks up against the BamX BX250-S1 Assault. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Yamaha Big Bear 250 | BamX BX250-S1 Assault |
|---|---|---|
| Model year | 2011 | 2010 |
| Price | — | $2,499 |
| Engine | 230 cc | 230 cc |
| Horsepower | — | 12 hp |
| Torque | — | 18 Nm |
| Weight | — | 395 kg |
| Seat height | 30 mm | 30 mm |
| Fuel capacity | 3.2 L | 1.7 L |
| Fuel type | petrol | petrol |
| Transmission | — | 4-speed |
| Front brakes | Double disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Tires | 22/7-10 / 22/10-10 | 21/7-10 / 20/10-9 |
Yamaha Big Bear 250 vs BamX BX250-S1 Assault — which should you buy?
Picking between the Yamaha Big Bear 250 and the BamX BX250-S1 Assault usually comes down to the numbers you care about most. On paper, the Yamaha Big Bear 250 brings its published horsepower, while the BamX BX250-S1 Assault counters with 12 hp at 395 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:

