BSA Super Rocket vs AJS Model 31 650 Swift (1966)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the BSA Super Rocketstacks up against the AJS Model 31 650 Swift. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | BSA Super Rocket | AJS Model 31 650 Swift |
|---|---|---|
| Model year | 1966 | 1966 |
| Price | — | — |
| Engine | 646 cc | 646 cc |
| Horsepower | — | 31 hp |
| Weight | 186 kg | 176 kg |
| Fuel capacity | — | 4.2 L |
| Fuel type | petrol | petrol |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
BSA Super Rocket vs AJS Model 31 650 Swift — which should you buy?
Picking between the BSA Super Rocket and the AJS Model 31 650 Swift usually comes down to the numbers you care about most. On paper, the BSA Super Rocket brings its published horsepower in a 186 kg package, while the AJS Model 31 650 Swift counters with 31 hp at 176 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: