Honda FMX 650 vs AJS Model 31 650 Swift (2007)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Honda FMX 650stacks up against the AJS Model 31 650 Swift. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Honda FMX 650 | AJS Model 31 650 Swift |
|---|---|---|
| Model year | 2007 | 1966 |
| Price | — | — |
| Engine | 644 cc | 646 cc |
| Horsepower | 37 hp | 31 hp |
| Torque | 52 Nm | — |
| Weight | 163 kg | 176 kg |
| Seat height | 34 mm | — |
| Fuel capacity | 2.9 L | 4.2 L |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | — |
| Front brakes | Double disc | Expanding brake (drum brake) |
| Rear brakes | Single disc | Expanding brake (drum brake) |
Honda FMX 650 vs AJS Model 31 650 Swift — which should you buy?
Picking between the Honda FMX 650 and the AJS Model 31 650 Swift usually comes down to the numbers you care about most. On paper, the Honda FMX 650 brings 37 hp in a 163 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: