Cruisers
1990Donghai SM 750 (With Sidecar)
19 fields on record
The 1990 Donghai SM 750 is a classic air-cooled twin suitable for riders seeking practical, retro sidecar transport. Its modest 26 horsepower and sturdy 400kg frame prioritize reliability and stability over performance. Best known for affordable, utilitarian cruising with passenger or cargo capability across varied terrain.
- Capacity
- 745.0 ccm
- Engine
- Parallel Twin
- Gearbox
- 4-speed
- Wet weight
- 400.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 26.0 HP (19.1 kW) @ 4500 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for utilitarian hauling and stable low-speed cruising rather than any kind of spirited or high-speed riding.
- Built for
- A rugged, old-world workhorse with air-cooled twin charm that rewards mechanical sympathy and a relaxed, unhurried riding style.
- Not ideal for
- This is not for riders seeking speed, cornering agility, or modern braking and comfort standards.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 745.0 ccm
- Power
- 26.0 HP (19.1 kW) @ 4500 RPM
- Engine type
- Parallel Twin
- Power/weight ratio
- 0.0650 HP/kg (wet)
- Bore x stroke
- 78.0 x 78.0 mm
- Compression
- 7.0:1
- Cooling system
- Air
- Valves per cylinder
- 2
- Torque
- Not on record - add it
Transmission
- Gearbox
- 4-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 119.0 km/h (73.9 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Expanding brake
- Rear brakes
- Expanding brake
- Front tyre
- 4.00-11
- Rear tyre
- 4.00-17
Specs last verified against published sources: .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 1987 | 1988 | 1989 | 1990 |
|---|---|---|---|---|
| Capacity | 745 cc | 745 cc | 745 cc | 745 cc |
| Fuel capacity | 25 L | 25 L | 25 L | 25 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Donghai SM 750 (With Sidecar)?
The 1990 Donghai SM 750 (With Sidecar) has a Capacity of 745.0 ccm (45.46 cubic inches).
What engine power does the Donghai SM 750 (With Sidecar) have?
The 1990 Donghai SM 750 (With Sidecar) has a Power of 26.0 HP (19.1 kW) @ 4500 RPM.
How many gears does the Donghai SM 750 (With Sidecar) have?
The 1990 Donghai SM 750 (With Sidecar) has a Gearbox of 4-speed.
How much does the Donghai SM 750 (With Sidecar) weigh?
The 1990 Donghai SM 750 (With Sidecar) has a Wet weight of 400.0 kg (881.8 pounds).
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