These are the known mechanical and performance specifications for your 2008 Factory Bike Desert YR50.
Basic Specs

Engine
Displacement49.70 ccm (3.03 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression12.0:1
Bore/Stroke1,000.0 x 990.6 mm (39.4 x 39.0 inches)
Valves/Cylinder
FuelingCarburettor. Dell’Orto PHBN
IgnitionElectronic
Exhaust
LubricationAutomix
CoolingLiquid
Drivetrain
Gearbox6-speed
Final DriveChain
ClutchMultidisc in oil bath
Driveline
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity7.50 litres (1.98 gallons)
Emissions
Chassis
Frame Type
Rake
Trail
Front SuspensionPAIOLI Fork 36 mm/mm
Front Travel
Rear SuspensionShock-Absorber PAIOLI
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height1,220 mm (48.0 inches)
Total Length2,070 mm (81.5 inches)
Total Width810 mm (31.9 inches)
Ground Clearance
Wheelbase
Dry Weight81.5 kg (179.7 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre90/90-21
Rear Tire/Tyre110/80-18
Front BrakesSingle disc
Front Brake Diameter240 mm (9.4 inches)
Rear BrakesSingle disc
Rear Brake Diameter220 mm (8.7 inches)
Wheels
Comments
Factorybike is a Spanish brand.