2022 Sym Jet X 125 Technical Analysis & Specification Breakdown
At the heart of the 2022 Sym Jet X 125 scooter motorcycle, Sym utilizes a 124.6 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 12.5 HP (9.1 kW) at 8,000 rpm while maximum torque reaches 11 Nm (8.1 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 100.3 HP per liter and a 2,000 rpm working window between peak torque (6,000 rpm) and peak power (8,000 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the Jet X 125 measures 111 kg (245 lbs) dry, translating to a power-to-weight ratio of 0.11 HP/kg (8.88 kg per horsepower). Rider ergonomics and chassis geometry center around a 770 mm (30.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,355 mm (53.3 in) wheelbase engineered for quick, flickable steering geometry. The 7.5-liter (2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Sym archive, this model family spans 5 indexed model years from 2021 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
100.3 HP/L
Power-to-Weight
0.11 HP/kg (8.88 kg/HP)
Power Band Window
6,000–8,000 rpm
Standover Height
770 mm (30.3 in)
Engine
Displacement124.6 ccm (7.60 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power12.5 HP (9.1 kW)) @ 8000 RPM
Torque11.0 Nm (1.1 kgf-m or 8.1 ft.lbs) @ 6000 RPM
Valves/Cylinder4
Fuel SystemInjection
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
DrivelineCVT
Performance
Emission DetailsEuro 5
Chassis
Frame TypePipe under bone
Front SuspensionTelescope fork
Rear SuspensionDual Shock, adjustable
Wheelbase1355 mm (53.3 inches)
Wheels & Brakes
Front Tyre100/90-14
Rear Tyre110/80-14
Front BrakesSingle disc. ABS
Front Brake Ø260 mm (10.2 inches)
Rear BrakesSingle disc. ABS
Rear Brake Ø220 mm (8.7 inches)
WheelsCast aluminium
Dimensions & Weight
Dry Weight111.0 kg (244.7 pounds)
Power/Weight0.1123 HP/kg
Seat Height770 mm (30.3 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
