Naked Motorcycles
2021SYM Symnh X 125
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The 2021 SYM Symnh X 125 is a compact, learner-legal naked bike made in Taiwan. Its air-cooled 124.1cc single produces 10.1 hp at 8,500 rpm and 9.5 Nm through a five-speed gearbox. A 787 mm seat, 143 kg wet weight and 11-litre tank suit everyday commuting.
- Capacity
- 124.1 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Wet weight
- 143.0 kg
- Seat height
- 787 mm
- Power
- 10.1 HP (7.3 kW) @ 8500 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's built primarily for urban commuting and short city runs rather than performance riding or long-distance travel.
- Built for
- Expect a friendly, economical, low-stress naked bike with modest single-cylinder performance and simple, practical ergonomics.
- Not ideal for
- This is not the bike for riders seeking highway overtaking power, sustained high speeds, or serious touring and offroad capability.
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
- 124.1 ccm
- Power
- 10.1 HP (7.3 kW) @ 8500 RPM
- CO2 Emissions
- 4 CO2 g/km
- Torque
- 9.5 Nm (1.0 kgf-m) @ 6500 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.0706 HP/kg (wet)
- Bore x stroke
- 56.5 x 49.5 mm
- Compression
- 10.1:1
- Cooling system
- Air
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Digital
- Lubrication system
- Forced lubrication and splashing
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 99.0 km/h (61.5 mph)
Dimensions & weight
- Wheelbase
- 1400 mm
- Overall length
- 2040 mm
- Overall width
- 745 mm
- Overall height
- 1080 mm
- Seat height
- 787 mm
- Wet weight
- 143.0 kg
- Fuel capacity
- 11.00 litres
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Diamind Steel
- Front suspension
- Telescope fork
- Rear suspension
- Single swing
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc
- Front tyre
- 110/70-17
- Rear tyre
- 130/70-17
Other
- Color options
- Grey, White, Red
- Comments
- Made 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 | 2023 | 2025 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 124 cc | 124 cc | 124 cc | 124 cc | 124 cc | 124 cc |
| Seat height | 787 mm | 787 mm | 787 mm | 787 mm | 787 mm | 787 mm |
| Fuel capacity | 11 L | 11 L | 11 L | 11 L | 11 L | 11 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 Symnh X 125?
The 2021 SYM Symnh X 125 has a Capacity of 124.1 ccm (7.57 cubic inches).
What engine power does the SYM Symnh X 125 have?
The 2021 SYM Symnh X 125 has a Power of 10.1 HP (7.3 kW) @ 8500 RPM.
How many gears does the SYM Symnh X 125 have?
The 2021 SYM Symnh X 125 has a Gearbox of 5-speed.
What is the torque of the SYM Symnh X 125?
The 2021 SYM Symnh X 125 has a Torque of 9.5 Nm (1.0 kgf-m or 7.0 ft.lbs) @ 6500 RPM.
How much does the SYM Symnh X 125 weigh?
The 2021 SYM Symnh X 125 has a Wet weight of 143.0 kg (315.3 pounds).
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