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2025SYM Jet 4 RX 50

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The 2025 Sym Jet 4 RX 50 is an entry-level automatic scooter designed for novice riders and urban commuters seeking affordable, practical transportation. Its modest 49.5cc engine delivers reliable performance for city riding with minimal maintenance requirements. Known for its accessible price point and straightforward engineering, it suits budget-conscious buyers prioritizing convenience and ease of use.

Capacity
49.5 ccm
Engine
Single, four-stroke
Gearbox
Not on record
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Wet weight
107.0 kg
Seat height
815 mm
Power
3.0 HP (2.2 kW) @ 8000 RPM
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2025 SYM Jet 4 RX 50

vs the 2024
Spec20242025
Wheelbase 1290 mm (50.8 inches) 1310 mm (51.6 inches)
Other years 2023 2024 2025 2026

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 4Agility 69Comfort 45Off-road 5Touring 10Road manners 40
Off-road & trail5%
Cornering20%
City riding80%
Daily riding55%
Touring5%
Two-up10%
Track0%
Best for
It is built purely for short, low-speed urban errands and commuting distances of just a few kilometers, not for any kind of sustained road use.
Built for
It's a practical, no-frills, economical runabout rather than a machine with any sporting or exciting character.
Not ideal for
This is not suitable for highway travel, longer trips, carrying a passenger comfortably, or any rider seeking speed or 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 us
At 815mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2025 SYM Jet 4 RX 50, with a moderate knee angle of around 105 degrees and a slightly forward riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine
Capacity
49.5 ccm
Power
3.0 HP (2.2 kW) @ 8000 RPM
CO2 Emissions
5 CO2 g/km
Torque
3.0 Nm (0.3 kgf-m) @ 6000 RPM
Engine type
Single, four-stroke
Power/weight ratio
0.0280 HP/kg (wet)
Bore x stroke
37.0 x 46.0 mm
Cooling system
Air
Fuel system
Injection
Starting
Electric
Transmission
Transmission type
Automatic
Final drive
Belt
Clutch
Automatic, centrifugal
Performance
Top speed
45.0 km/h (28.0 mph)
Dimensions & weight
Wheelbase
1310 mm
Overall length
1900 mm
Overall width
745 mm
Overall height
1110 mm
Seat height
815 mm
Wet weight
107.0 kg
Fuel capacity
6.20 litres
Dry weight
Not on record - add it
Chassis & suspension
Front suspension
Telescopic Fork
Rear suspension
Single Shock
Brakes & wheels
Front brakes
Single disc
Rear brakes
Expanding brake (drum brake)
Front tyre
110/70-12
Rear tyre
120/70-12
Other
Color options
Grey, Black
Comments
SYM scooters are produced 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 2023202420252026
Capacity 50 cc 50 cc 50 cc 50 cc
Seat height 815 mm 815 mm 815 mm 815 mm
Fuel capacity 6.2 L 6.2 L 6.2 L 6.2 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

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Common questions

What is the engine size of the SYM Jet 4 RX 50?

The 2025 SYM Jet 4 RX 50 has a Capacity of 49.5 ccm (3.02 cubic inches).

What engine power does the SYM Jet 4 RX 50 have?

The 2025 SYM Jet 4 RX 50 has a Power of 3.0 HP (2.2 kW) @ 8000 RPM.

What is the torque of the SYM Jet 4 RX 50?

The 2025 SYM Jet 4 RX 50 has a Torque of 3.0 Nm (0.3 kgf-m or 2.2 ft.lbs) @ 6000 RPM.

How much does the SYM Jet 4 RX 50 weigh?

The 2025 SYM Jet 4 RX 50 has a Wet weight of 107.0 kg (235.9 pounds).

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