Comparison of Yamaha U7E 1972 and Zündapp 517 KS 50 1967 [S]ave
| Attribute |  Yamaha U7E 1972 × |  Zündapp 517 KS 50 1967 × |
|---|---|---|
| General | ||
| Production from (year) | 1972 | 1967 |
| Make | Yamaha | Zündapp |
| Model | Yamaha U7E | Zündapp 517 KS 50 |
| Category | Scooter | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | - | Carburettor. Bing |
| Displacement (cm³) | 72 | 49.9 |
| Power (kw) | 3.6 | - |
| Cooling system | Air | Air |
| Transmission type,final drive | - | Chain |
| Bore (mm) | 47 | 39 |
| Stroke (mm) | 42 | 41.8 |
| Gearbox | 3-speed | - |
| Compression | 6.8:1 | - |
| Chassis | ||
| Front suspension | - | Telescopic |
| Rear suspension | - | Two schock |
| Front brakes | Expanding brake (drum brake) | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Front tyre | 225-17 | - |
| Rear tyre | 250-17 | - |
| Seat | - | Dual |
| Wheels | - | Spoked |
| Dimensions | ||
| Dry weight (kg) | 77 | 86 |
| Power/weight ratio | 0.0468 | - |
| Performance | ||
| Top speed (km/h) | 85 | 80 |
| Fuel capacity (l) | - | 12.5 |
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