Scooters
2026Sym Adx 300
27 fields on record
The 2026 Sym ADX 300 is a practical maxi-scooter designed for commuters and riders seeking comfort and reliability. Its 278cc liquid-cooled engine delivers 25.5 HP with smooth CVT transmission, making it ideal for urban and suburban riding. Euro 5 compliant with fuel injection, it offers excellent fuel efficiency and low maintenance for daily transportation needs.
- 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 2026 Sym Adx 300 has a Capacity of 278.3 ccm (16.98 cubic inches).
What engine power does the Sym Adx 300 have?
The 2026 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 2026 Sym Adx 300 has a Torque of 26.0 Nm (2.7 kgf-m or 19.2 ft.lbs) @ 6000 RPM.
Shop this bike
Affiliate linksWe may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.
Please log in or register if you'd like to leave a comment.
Own one? Add it to My Garage and write an owner review with an Owner badge.