Scooters
2025Sym Adx 300
27 fields on record
The 2025 Sym ADX 300 is a practical maxi-scooter designed for urban commuters and riders seeking comfortable, efficient daily transportation. Powered by a 278cc liquid-cooled four-stroke engine producing 25.5 HP, it delivers dependable performance with automatic CVT transmission and modern EFI fuel injection. Known for its user-friendly nature and reliability, the ADX 300 excels as an affordable, low-maintenance alternative to small motorcycles.
- Capacity
- 278.3 ccm
- Engine
- Single, four-stroke
- Gearbox
- Not on record
Know it? Add it → - Dry weight
- Not on record
Know it? Add it → - Seat height
- 790 mm
- Power
- 25.5 HP (18.6 kW) @ 8000 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed as a versatile urban and suburban commuter with enough highway capability for occasional longer rides.
- Built for
- A practical, maxi-style scooter blending everyday usability with a sportier stance and modern LED lighting and tech.
- Not ideal for
- Not suited for off-road use, track riding, or riders seeking high-speed touring 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
- 25.5 HP (18.6 kW) @ 8000 RPM
- CO2 Emissions
- 5 CO2 g/km
- Torque
- 26.0 Nm (2.7 kgf-m) @ 6000 RPM
- Engine type
- Single, four-stroke
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
Transmission
- Transmission type
- Automatic
- Final drive
- Belt
Dimensions & weight
- Wheelbase
- 1510 mm
- Overall length
- 2185 mm
- Overall width
- 810 mm
- Overall height
- 1325 mm
- Seat height
- 790 mm
- Fuel capacity
- 15.00 litres
- Ground clearance
- 160 mm
- Carrying capacity
- Underseat storage
- Dry weight
- Not on record - add it
Chassis & suspension
- Front suspension
- Telescope fork
- Rear suspension
- Dual Shock
Brakes & wheels
- Front brakes
- Single disc. ABS.
- Rear brakes
- Single disc. Bosh ABS.
- ABS
- Yes
- Front tyre
- 120/70-15
- Rear tyre
- 140/70-14
Other
- Color options
- Black, grey, white, Blue
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 | 2025 | 2026 |
|---|---|---|
| Capacity | 278 cc | 278 cc |
| Seat height | 790 mm | 790 mm |
| Fuel capacity | 15 L | 15 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 Adx 300?
The 2025 Sym Adx 300 has a Capacity of 278.3 ccm (16.98 cubic inches).
What engine power does the Sym Adx 300 have?
The 2025 Sym Adx 300 has a Power of 25.5 HP (18.6 kW) @ 8000 RPM.
What is the torque of the Sym Adx 300?
The 2025 Sym Adx 300 has a Torque of 26.0 Nm (2.7 kgf-m or 19.2 ft.lbs) @ 6000 RPM.
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