Scooters
2025SYM HD 300
31 fields on record
The 2025 Sym HD 300 is a practical maxi-scooter designed for commuters and casual riders seeking affordable, reliable urban mobility. Powered by a 278cc liquid-cooled four-stroke engine producing 25.4 horsepower, it delivers adequate performance for city riding with a top speed of 127 km/h. Its automatic transmission and fuel-injected engine make it accessible to new riders while offering the comfort and storage benefits typical of the maxi-scooter category.
- Capacity
- 278.3 ccm
- Engine
- Single, four-stroke
- Gearbox
- Not on record
Know it? Add it → - Wet weight
- 175.0 kg
- Seat height
- 805 mm
- Power
- 25.4 HP (18.7 kW) @ 7500 RPM
What’s new for the 2025 SYM HD 300
vs the 2022| Spec | 2022 | 2025 |
|---|---|---|
| Power | 25.4 HP (18.5 kW) @ 7500 RPM | 25.4 HP (18.7 kW) @ 7500 RPM |
| Wet weight | 177.0 kg (390.2 pounds) | 175.0 kg (385.8 pounds) |
| Front suspension | Telescope fork | Telescopic Fork |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed primarily as a practical urban and suburban commuter scooter with occasional longer-ride capability.
- Built for
- A sensible, no-drama maxi-scooter that prioritizes comfort, storage and easy handling over outright speed or sportiness.
- Not ideal for
- Not a good fit for riders seeking high-speed touring, off-road capability, or sporty cornering performance.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 278.3 ccm
- Power
- 25.4 HP (18.7 kW) @ 7500 RPM
- CO2 Emissions
- 5 CO2 g/km
- Torque
- 26.2 Nm (2.7 kgf-m) @ 6000 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.1451 HP/kg (wet)
- Bore x stroke
- 75.0 x 63.0 mm
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
Transmission
- Transmission type
- Automatic
- Final drive
- Belt
Performance
- Top speed
- 127.0 km/h (78.9 mph)
Dimensions & weight
- Wheelbase
- 1505 mm
- Overall length
- 2220 mm
- Overall width
- 770 mm
- Overall height
- 1225 mm
- Seat height
- 805 mm
- Wet weight
- 175.0 kg
- Fuel capacity
- 10.00 litres
- Carrying capacity
- Underseat storage
- Dry weight
- Not on record - add it
Chassis & suspension
- Front suspension
- Telescopic Fork
- Rear suspension
- Dual Shock
Brakes & wheels
- Front brakes
- Single disc. ABS.
- Rear brakes
- Single disc. ABS.
- ABS
- Yes
- Front tyre
- 110/70-16
- Rear tyre
- 140/70-16
Other
- Color options
- White, grey, dark grey, blue
- Comments
- The SYM brand is owned by Sanyang Motor in Taiwan.
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 | 2020 | 2021 | 2022 | 2025 | 2026 |
|---|---|---|---|---|---|
| Capacity | 278 cc | 278 cc | 278 cc | 278 cc | 278 cc |
| Seat height | 800 mm | 800 mm | 805 mm | 805 mm | 805 mm |
| Fuel capacity | 10 L | 10 L | 10 L | 10 L | 10 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 SYM HD 300?
The 2025 SYM HD 300 has a Capacity of 278.3 ccm (16.98 cubic inches).
What engine power does the SYM HD 300 have?
The 2025 SYM HD 300 has a Power of 25.4 HP (18.7 kW) @ 7500 RPM.
What is the torque of the SYM HD 300?
The 2025 SYM HD 300 has a Torque of 26.2 Nm (2.7 kgf-m or 19.3 ft.lbs) @ 6000 RPM.
How much does the SYM HD 300 weigh?
The 2025 SYM HD 300 has a Wet weight of 175.0 kg (385.8 pounds).
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