Positioned in Sym's scooter motorcycle lineup, the 2025 Sym Mio 50 pairs a 49.5 cc (3 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 3 HP (2.2 kW) at 8,000 rpm while maximum torque reaches 3 Nm (2.2 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 37.0 x 46.0 mm (1.5 x 1.8 inches).
On the scales, the Mio 50 measures 88 kg (194 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 765 mm (30.1 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,250 mm (49.2 in) wheelbase engineered for quick, flickable steering geometry. The 5.2-liter (1.4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 45 km/h (28 mph).
Within MotoLibrary's Sym archive, this model family spans 9 indexed model years from 2007 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Power Band Window
6,000–8,000 rpm
Standover Height
765 mm (30.1 in)
Engine
Displacement49.5 ccm (3.02 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power3.0 HP (2.2 kW)) @ 8000 RPM
Torque3.0 Nm (0.3 kgf-m or 2.2 ft.lbs) @ 6000 RPM
Bore x Stroke37.0 x 46.0 mm (1.5 x 1.8 inches)
Fuel SystemInjection. EFI
Fuel ControlOverhead Cams (OHC)
CoolingAir
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
DrivelineCVT
Performance
Top Speed45.0 km/h (28.0 mph)
Emission DetailsEuro 5
Chassis
Front SuspensionTelescopic Fork
Rear SuspensionSingle shock, adjustable
Wheelbase1250 mm (49.2 inches)
Wheels & Brakes
Front Tyre90/90-10
Rear Tyre90/90-10
Front BrakesSingle disc
Front Brake Ø160 mm (6.3 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø110 mm (4.3 inches)
WheelsCast aluminium
Dimensions & Weight
Weight incl.88.0 kg (194.0 pounds)
Seat Height765 mm (30.1 inches) If adjustable, lowest setting.
Overall Height1050 mm (41.3 inches)
Overall Length1760 mm (69.3 inches)
Overall Width695 mm (27.4 inches)
Fuel Capacity5.20 litres (1.37 US gallons)
Other
StarterElectric
Color OptionsBlue, grey, white, black
InstrumentsLCD instruments
Carrying CapacityUnderseat storage
Notes
SYM scooters are produced 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.
