These are the known mechanical and performance specifications for your 2011 PGO PMX Sport 50.
Basic Specs

Engine
Displacement49.00 ccm (2.99 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression
Bore/Stroke
Valves/Cylinder
Fueling
IgnitionCDI
Exhaust
Lubrication
CoolingAir
Performance
Horespower4.83 HP (3.5 kW)
Torque5.10 Nm (0.5 kgf-m or 3.8 ft.lbs)
Top Speed
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity6.70 litres (1.77 gallons)
Emissions
Chassis
Frame Type
Rake
Trail
Front SuspensionTelescopic
Front Travel
Rear SuspensionUnit Swing Arm
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height1,116 mm (43.9 inches)
Total Length1,807 mm (71.1 inches)
Total Width637 mm (25.1 inches)
Ground Clearance
Wheelbase1,173 mm (46.2 inches)
Dry Weight82.0 kg (180.8 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre120/70-12
Rear Tire/Tyre130/70-12
Front BrakesSingle disc
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
Wheels
Comments
Taiwanese brand. Model also called PGO PMS50.