GAS GAS SM450 Halley vs ATK 450 Dirt Track (2009)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the GAS GAS SM450 Halleystacks up against the ATK 450 Dirt Track. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | GAS GAS SM450 Halley | ATK 450 Dirt Track |
|---|---|---|
| Model year | 2009 | 2008 |
| Price | — | — |
| Engine | 449 cc | 449 cc |
| Horsepower | — | 48 hp |
| Weight | 119 kg | 110 kg |
| Seat height | 34 mm | 30 mm |
| Fuel capacity | 2.0 L | 2.0 L |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | 5-speed |
| Front brakes | Single disc. 2-piston caliper, Nissin | Single disc |
| Rear brakes | Single disc | Single disc |
| Tires | 120/60-17 / 150/60-17 | — |
GAS GAS SM450 Halley vs ATK 450 Dirt Track — which should you buy?
Picking between the GAS GAS SM450 Halley and the ATK 450 Dirt Track usually comes down to the numbers you care about most. On paper, the GAS GAS SM450 Halley brings its published horsepower in a 119 kg package, while the ATK 450 Dirt Track counters with 48 hp at 110 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: