AJS Model 20 500 vs Zündapp K 500 (1959)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the AJS Model 20 500stacks up against the Zündapp K 500. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | AJS Model 20 500 | Zündapp K 500 |
|---|---|---|
| Model year | 1959 | 1940 |
| Price | — | — |
| Engine | 498 cc | 498 cc |
| Horsepower | 20 hp | 16 hp |
| Weight | 178 kg | 180 kg |
| Fuel capacity | 3.6 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) |
| Tires | 3.25-19 / 3.25-19 | 3.50-19 / 3.50-19 |
AJS Model 20 500 vs Zündapp K 500 — which should you buy?
Picking between the AJS Model 20 500 and the Zündapp K 500 usually comes down to the numbers you care about most. On paper, the AJS Model 20 500 brings 20 hp in a 178 kg package, while the Zündapp K 500 counters with 16 hp at 180 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: