These are the known mechanical and performance specifications for your 2008 KTM 65 SX.
Basic Specs

Engine
Displacement64.90 ccm (3.96 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression12.5:1
Bore/Stroke45.0 x 40.8 mm (1.8 x 1.6 inches)
Valves/Cylinder
FuelingCarburettor. Mikuni VM 24
IgnitionMoric digital 2M1
ExhaustAluminium
LubricationMixture lubrication 1:60
CoolingLiquid
Drivetrain
Gearbox6-speed
Final Drive
ClutchWet multi-disc clutch, operated hydraulically
Driveline
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity3.30 litres (0.87 gallons)
Emissions
Chassis
Frame TypeDouble grinded central double-cradle-type frame
Rake25.5°
Trail220 mm (8.7 inches)
Front SuspensionMarzocchi
Front Travel270 mm (10.6 inches)
Rear SuspensionWP monoshock
Rear Travel125 mm (4.9 inches)
Seat
Seat Height725 mm (28.5 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance290 mm (11.4 inches)
Wheelbase1,137 mm (44.8 inches)
Dry Weight55.6 kg (122.6 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre60/100-14
Rear Tire/Tyre80/100-12
Front BrakesSingle disc. Bremo
Front Brake Diameter200 mm (7.9 inches)
Rear BrakesSingle disc. Bremo
Rear Brake Diameter160 mm (6.3 inches)
Wheels


Comments
Intended for children 6-9 years.