GAS GAS SM 125 Halley vs Hyosung RX125D SM (2011)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the GAS GAS SM 125 Halleystacks up against the Hyosung RX125D SM. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | GAS GAS SM 125 Halley | Hyosung RX125D SM |
|---|---|---|
| Model year | 2010 | 2011 |
| Price | — | — |
| Engine | 124 cc | 124 cc |
| Horsepower | — | 13 hp |
| Weight | 99 kg | 123 kg |
| Seat height | 37 mm | 33 mm |
| Fuel capacity | 2.5 L | — |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 5-speed |
| Front brakes | Single disc. 2 pistons caliper | — |
| Rear brakes | Single disc | — |
| Tires | 100/80-17 / 120/70-17 | 110/70-17 / 130/70-17 |
GAS GAS SM 125 Halley vs Hyosung RX125D SM — which should you buy?
Picking between the GAS GAS SM 125 Halley and the Hyosung RX125D SM usually comes down to the numbers you care about most. On paper, the GAS GAS SM 125 Halley brings its published horsepower in a 99 kg package, while the Hyosung RX125D SM counters with 13 hp at 123 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:

