Jawa-CZ 50 Robby vs DKW Hummel 155 (2005)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Jawa-CZ 50 Robbystacks up against the DKW Hummel 155. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Jawa-CZ 50 Robby | DKW Hummel 155 |
|---|---|---|
| Model year | 2005 | 1965 |
| Price | — | — |
| Engine | 50 cc | 50 cc |
| Horsepower | 3 hp | — |
| Torque | 3 Nm | — |
| Weight | 80 kg | — |
| Seat height | 29 mm | — |
| Fuel capacity | 1.7 L | — |
| Fuel type | petrol | petrol |
| Transmission | 4-speed | — |
| Front brakes | Single disc | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Tires | 2.5-16 / 3.00-16 | — |
Jawa-CZ 50 Robby vs DKW Hummel 155 — which should you buy?
Picking between the Jawa-CZ 50 Robby and the DKW Hummel 155 usually comes down to the numbers you care about most. On paper, the Jawa-CZ 50 Robby brings 3 hp in a 80 kg package, while the DKW Hummel 155 counters with its own power figure.
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:

