Comparison of Harley-Davidson SS 125 1977 and Zweirad-Union RT 125 1971 [S]ave
| Attribute |  Zweirad-Union RT 125 1971 × |  Harley-Davidson SS 125 1977 × |
|---|---|---|
| General | ||
| Production from (year) | 1971 | 1977 |
| Make | Zweirad-Union | Harley-Davidson |
| Model | Zweirad-Union RT 125 | Harley-Davidson SS 125 |
| Category | Unspecified category | Minibike, sport |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Displacement (cm³) | 124 | 123 |
| Power (kw) | 10.9 | 9.5 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 54 | 56 |
| Stroke (mm) | 54 | 50 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Port control | Port control |
| Compression | 10.8:1 | 10.8:1 |
| Chassis | ||
| Front brakes | Expanding brake | Expanding brake |
| Rear brakes | Expanding brake | Expanding brake |
| Front tyre | 2.75-17 | 3.00-19 |
| Rear tyre | 3.00-17 | 3.50-18 |
| Dimensions | ||
| Kerb weight (kg) | 115 | 112 |
| Performance | ||
| Top speed (km/h) | 110 | 110 |
| Fuel capacity (l) | 13 | 10.5 |
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