AJS Exactly 50 vs Docker Alpha S50 (2023)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the AJS Exactly 50stacks up against the Docker Alpha S50. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | AJS Exactly 50 | Docker Alpha S50 |
|---|---|---|
| Model year | 2011 | 2023 |
| Price | — | — |
| Engine | 40 cc | 48 cc |
| Horsepower | 3 hp | 3 hp |
| Weight | 87 kg | — |
| Seat height | 31 mm | — |
| Fuel capacity | 1.2 L | 1.0 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | 4-speed |
| Front brakes | Single disc | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | 120/70-12 / 130/70-12 | 2.50-17 / 2.75-17 |
AJS Exactly 50 vs Docker Alpha S50 — which should you buy?
Picking between the AJS Exactly 50 and the Docker Alpha S50 usually comes down to the numbers you care about most. On paper, the AJS Exactly 50 brings 3 hp in a 87 kg package, while the Docker Alpha S50 counters with 3 hp.
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:

