These are the known mechanical and performance specifications for your 2008 PGO G-MAX 50.
Basic Specs

Engine
Displacement49.00 ccm (2.99 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression6.8:1
Bore/Stroke40.0 x 39.2 mm (1.6 x 1.5 inches)
Valves/Cylinder
FuelingCarburettor
IgnitionCDI
Exhaust
LubricationSeparation
CoolingAir
Performance
Horespower3.08 HP (2.2 kW)
Torque3.50 Nm (0.4 kgf-m or 2.6 ft.lbs)
Top Speed
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity7.50 litres (1.98 gallons)
Emissions
Chassis
Frame Type
Rake
Trail
Front Suspension
Front Travel
Rear Suspension
Rear Travel
Seat
Seat Height820 mm (32.3 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1,170 mm (46.1 inches)
Total Length1,855 mm (73.0 inches)
Total Width730 mm (28.7 inches)
Ground Clearance
Wheelbase1,365 mm (53.7 inches)
Dry Weight
Wet Weight105.0 kg (231.5 pounds)
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
Taiwan made bike.