These are the known mechanical and performance specifications for your 2010 Rieju MX 50 .
Basic Specs

Engine
Displacement50.00 ccm (3.05 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression
Bore/Stroke39.0 x 41.8 mm (1.5 x 1.6 inches)
Valves/Cylinder
FuelingCarburettor
Ignition
ExhaustMuffler with silencer
Lubrication
CoolingAir
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity2.50 litres (0.66 gallons)
Emissions
Chassis
Frame TypeDouble cradle steel tube
Rake
Trail
Front SuspensionHydraulic telescopic fork
Front Travel
Rear SuspensionMono-shock
Rear Travel
Seat
Seat Height740 mm (29.1 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height995 mm (39.2 inches)
Total Length1,596 mm (62.8 inches)
Total Width
Ground Clearance
Wheelbase1,100 mm (43.3 inches)
Dry Weight46.0 kg (101.4 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre2.50-15
Rear Tire/Tyre3.00-12
Front BrakesExpanding brake (drum brake)
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
Wheels
Comments
Intended for children 6-11 year, learning model.