1973 Yamaha RD 125 specifications
Available technical data for this model and year. Specifications can vary by market and version.
Technical specifications
| Displacement | 125.0 ccm (7.63 cubic inches) |
|---|---|
| Engine type | Twin, two-stroke |
| Power | 17.0 HP (12.4 kW )) @ 9500 RPM |
| Compression | 6.8:1 |
| Bore x stroke | 43.0 x 43.0 mm (1.7 x 1.7 inches) |
| Fuel control | Membrane |
| Cooling system | Air |
| Gearbox | 5-speed |
| Transmission type | Chain (final drive) |
| Front brakes | Expanding brake |
| Rear brakes | Expanding brake |
| Front tyre | 2.75-18 |
| Rear tyre | 3.00-18 |
| Weight incl. oil, gas, etc | 117.0 kg (257.9 pounds) |
| Fuel capacity | 11.50 litres (3.04 US gallons) |
| Top speed | 127.0 km/h (78.9 mph) |
Source: Bikez: RD 125, 1973. Retrieved 2026-09-19. Match confidence: exact.
Years listed are the entries held in this archive, rather than a complete production history.
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