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