04 June. Thursday 2026
Donghai SM 750 (with Sidecar) - 1989 Specifications and Reviews
The 1989 Donghai SM 750 is a classic air-cooled twin-cylinder motorcycle with sidecar, delivering 26 horsepower from its 745cc engine. Designed for practical everyday riding and sidecar duty, it suits riders seeking reliable, economical transportation with vintage character. Its lightweight 400kg frame and sturdy construction made it popular for family and commercial use in Asian markets.
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General information | |
| Category | Classic |
| Year | 1989 |
| Model | Donghai SM 750 (with sidecar) |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Chain |
| Gearbox | 4-speed |
| Cooling system | Air |
| Fuel control | OHV |
| Valves per cylinder | 2 |
| Bore x stroke | 78.0 x 78.0 mm (3.1 x 3.1 inches) |
| Compression | 7.0:1 |
| Power | 26.00 |
| Stroke | 4 |
| Engine type | Twin |
| Capacity: | 745.00 ccm (45.46 cubic inches) |
| | |
Physical measures and capacities | |
| Weight incl. oil, gas, etc | 400.0 kg (881.8 pounds) |
| | |
Donghai SM 750 (with Sidecar) dimensions and frame | |
| Rear brakes | Expanding brake |
| Front brakes | Expanding brake |
| Rear tyre dimensions | 4.00-17 |
| Front tyre dimensions | 4.00-17 |
Speed and acceleration | |
| Top speed | 119.0 km/h (73.9 mph) |
Other specs | |
| Fuel capacity | 25.00 litres (6.61 gallons) |
Rider Reviews
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