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Moto profi >> Manufacturers list >> KTM >> 50 SX Junior 2009
Motorcycle Specs and Pictures


KTM 50 SX Junior 2009

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TECHNICAL SPECIFICATION
Model ID
Manufacturer (Make)KTM
Model Name50 SX Junior
Year2009
Category(class)Pocket bike / Minibike (Cross)
Engine
Engine Capacity (Displacement)49 ccm (2.99 cubic inches)
Engine TypeSingle cylinder, two-stroke
Bore x StrokeØ39.5 mm x 40.0 mm (Ø1.56 inches x 1.57 inches)
Bore/Stroke Ratio0.99
Compression Ratio12.5:1
Fuel System(Carburetion)Carburettor. DellOrto PHVA 14 DS
IgnitionSeletra analogue
Starter SystemKick
Lubrication SystemMixture lubrication
Cooling SystemLiquid
Exhaust SystemAluminium
Powertrain
ClutchCentrifugal clutch (adjustable)
Chassis/Suspension/Brakes
Frame TypeCentral double-cradle-type frame. Steel subframe.
Front SuspensionMarzocchi
Front Suspension Travel205 mm (8.07 inches)
Rear SuspensionWP monoshock
Rear Suspension Travel125 mm (4.92 inches)
Front BrakesSingle disc
Front Brakes DiameterØ160 mm (Ø6.3 inches)
Rear BrakesSingle disc
Rear Brakes DiameterØ140 mm (Ø5.51 inches)
Front Tire25-10
Rear Tire275-10
Dimensions
Seat Height607 mm (23.9 inches)
Fork Angle (Rake)24.0° degrees
Trail140 mm (5.51 inches)
Wheelbase910 mm (35.83 inches)
Ground Clearance220 mm (8.66 inches)
Dry Weight37.6 kg (83 lb)
Fuel Capacity 2.30 litres (0.61 gallons)
Performance
Top Speed-
Acceleration (dart, speedup) time
  • 0-100 km/h
  • -
  • 0-60 mph
  • -
  • 1/4 mile
  • -
  • 60 to 140 km/h, highest gear
  • -

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