Aprilia SR R 50 vs AJS Firefox 50 (2021)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Aprilia SR R 50stacks up against the AJS Firefox 50. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Aprilia SR R 50 | AJS Firefox 50 |
|---|---|---|
| Model year | 2021 | 2020 |
| Price | $3,070 | — |
| Engine | 49 cc | 49 cc |
| Horsepower | — | 3 hp |
| Seat height | 31 mm | 33 mm |
| Fuel capacity | 1.9 L | 1.7 L |
| Fuel type | petrol | petrol |
| Transmission | Automatic | Automatic |
| Front brakes | Single disc. 2 opposing pistons | Single disc |
| Rear brakes | Single disc. 2 opposing pistons | Expanding brake (drum brake) |
| Tires | 130/60-13 / 130/60-13 | 120/70-12 / 120/70-12 |
Aprilia SR R 50 vs AJS Firefox 50 — which should you buy?
Picking between the Aprilia SR R 50 and the AJS Firefox 50 usually comes down to the numbers you care about most. On paper, the Aprilia SR R 50 brings its published horsepower, while the AJS Firefox 50 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: