These are the known mechanical and performance specifications for your 2007 Rieju RR Sport Edition.
Basic Specs

Engine
Displacement50.00 ccm (3.05 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression
Bore/Stroke40.3 x 39.0 mm (1.6 x 1.5 inches)
Valves/Cylinder
FuelingCarburettor. Dell´Orto PHBN 16
Ignition
ExhaustSteel Tube Varnished, Racing Type With Protector
Lubrication
CoolingLiquid
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity5.50 litres (1.45 gallons)
Emissions
Chassis
Frame TypeSteel tube, electric welded
Rake
Trail
Front SuspensionUpside down front fork
Front Travel
Rear SuspensionMonoShock Absorder Progressive System
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height1,200 mm (47.2 inches)
Total Length2,020 mm (79.5 inches)
Total Width810 mm (31.9 inches)
Ground Clearance
Wheelbase1,345 mm (53.0 inches)
Dry Weight88.0 kg (194.0 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre80/90-21
Rear Tire/Tyre110/80-18
Front BrakesSingle disc
Front Brake Diameter220 mm (8.7 inches)
Rear BrakesSingle disc
Rear Brake Diameter180 mm (7.1 inches)
Wheels
Comments
Spanish made bikes