These are the known mechanical and performance specifications for your 2013 Rieju Marathon Supermotard 125.
Basic Specs

Engine
Displacement125.00 ccm (7.63 cubic inches)
Type
DetailsSingle cylinder, four-stroke
Max RPM
Compression
Bore/Stroke52.0 x 58.6 mm (2.0 x 2.3 inches)
Valves/Cylinder4
FuelingCarburettor. KEIHIN CVEK30
Ignition
Exhaust
Lubrication
CoolingLiquid
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity6.30 litres (1.66 gallons)
Emissions
Chassis
Frame TypeDouble cradle. Highly resistant steel perimeter
Rake
Trail
Front SuspensionFork of Ø36mm.
Front Travel
Rear SuspensionMono-shock
Rear Travel
Seat
Seat Height900 mm (35.4 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height
Total Length2,150 mm (84.6 inches)
Total Width
Ground Clearance
Wheelbase1,395 mm (54.9 inches)
Dry Weight106.5 kg (234.8 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre100/80-17
Rear Tire/Tyre130/70-17
Front BrakesSingle disc. 2-piston
Front Brake Diameter300 mm (11.8 inches)
Rear BrakesSingle disc
Rear Brake Diameter200 mm (7.9 inches)
Wheels
Comments
Spanish brand.