Jawa 50 Robby vs Simson S51 B1-4 (2005)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Jawa 50 Robbystacks up against the Simson S51 B1-4. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Jawa 50 Robby | Simson S51 B1-4 |
|---|---|---|
| Model year | 2005 | 1980 |
| Price | — | $1,500 |
| Engine | 50 cc | 50 cc |
| Horsepower | 3 hp | 4 hp |
| Torque | 3 Nm | — |
| Weight | 80 kg | 79 kg |
| Seat height | 29 mm | — |
| Fuel capacity | 1.7 L | 2.3 L |
| Fuel type | petrol | petrol |
| Transmission | 4-speed | 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 50 Robby vs Simson S51 B1-4 — which should you buy?
Picking between the Jawa 50 Robby and the Simson S51 B1-4 usually comes down to the numbers you care about most. On paper, the Jawa 50 Robby brings 3 hp in a 80 kg package, while the Simson S51 B1-4 counters with 4 hp at 79 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: