These are the known mechanical and performance specifications for your 2009 KTM 50 SX Junior.
Basic Specs
Engine
Displacement49.00 ccm (2.99 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression12.5:1
Bore/Stroke39.5 x 40.0 mm (1.6 x 1.6 inches)
Valves/Cylinder
FuelingCarburettor. Dell´Orto PHVA 14 DS
IgnitionSeletra analogue
ExhaustAluminium
LubricationMixture lubrication
CoolingLiquid
Drivetrain
GearboxAutomatic
Final Drive
ClutchCentrifugal clutch (adjustable)
Driveline
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity2.30 litres (0.61 gallons)
Emissions
Chassis
Frame TypeCentral double-cradle-type frame. Steel subframe.
Rake24.0°
Trail140 mm (5.5 inches)
Front SuspensionMarzocchi
Front Travel205 mm (8.1 inches)
Rear SuspensionWP monoshock
Rear Travel125 mm (4.9 inches)
Seat
Seat Height607 mm (23.9 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance220 mm (8.7 inches)
Wheelbase910 mm (35.8 inches)
Dry Weight37.6 kg (82.9 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre2.5-10
Rear Tire/Tyre2.75-10
Front BrakesSingle disc
Front Brake Diameter160 mm (6.3 inches)
Rear BrakesSingle disc
Rear Brake Diameter140 mm (5.5 inches)
Wheels
Comments
Intended for children.