Positioned in Sym's scooter motorcycle lineup, the 2025 Sym Maxsym 400 GT utilizes a 399 cc (24.4 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 33.5 HP (24.5 kW) at 6,750 rpm while maximum torque reaches 38.1 Nm (28.1 lb-ft) at 5,250 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 84 HP per liter and a 1,500 rpm working window between peak torque (5,250 rpm) and peak power (6,750 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Maxsym 400 GT measures 212 kg (467 lbs) wet (curb), translating to a power-to-weight ratio of 0.16 HP/kg (6.33 kg per horsepower). Rider ergonomics and chassis geometry center around a 780 mm (30.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,555 mm (61.2 in) wheelbase engineered for planted straight-line stability. The 13-liter (3.4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 139 km/h (86 mph).
Specific Output
84 HP/L
Power-to-Weight
0.16 HP/kg (6.33 kg/HP)
Power Band Window
5,250–6,750 rpm
Standover Height
780 mm (30.7 in)
Engine
Displacement399.0 ccm (24.35 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power33.5 HP (24.5 kW)) @ 6750 RPM
Torque38.1 Nm (3.9 kgf-m or 28.1 ft.lbs) @ 5250 RPM
Bore x Stroke83.0 x 73.8 mm (3.3 x 2.9 inches)
Valves/Cylinder4
Fuel SystemInjection. EFI
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
DrivelineCVT
Performance
Top Speed139.0 km/h (86.4 mph)
Emission DetailsEuro 5 Pluss
Chassis
Front SuspensionTelescope fork
Rear SuspensionDual shocks
Wheelbase1555 mm (61.2 inches)
Wheels & Brakes
Front Tyre120/70-15
Rear Tyre160/60-14
Front BrakesDouble disc. ABS
Front Brake Ø288 mm (11.3 inches)
Rear BrakesSingle disc. ABS
Rear Brake Ø275 mm (10.8 inches)
Dimensions & Weight
Weight incl.212.0 kg (467.4 pounds)
Seat Height780 mm (30.7 inches) If adjustable, lowest setting.
Overall Height1455 mm (57.3 inches)
Overall Length2230 mm (87.8 inches)
Overall Width820 mm (32.3 inches)
Fuel Capacity13.00 litres (3.43 US gallons)
Other
StarterElectric
Color OptionsBlack, White, Grey, Blue
InstrumentsColor LCD instrument panel/analogue
LightLED lights
Carrying CapacityUnderseat storage
Notes
Windsceen. Traction control. USB charging. Keyless. The SYM brand is owned by Sanyang Motor in Taiwan.
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.
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.
