KTM 50SX Junior , 2009

KTM 50SX Junior , 2009

Engine type Single cylinder, 2-stroke
Displacement 49 cc
Bore x stroke 39.5 x 40 mm (1.55 x 1.57")
Starter Kickstarter
Carburetor Dell'Orto PHVA 14 DS
Engine lubrication Mixture oil lubrication 1:60
Transmission oil Motorex ATF Super
Primary drive 61:33
Final drive 11:40
Cooling Liquid cooled
Clutch Centrifugal clutch (adjustable)
Ignition Seletra analog


Frame Central double-cradle-type frame
Subframe Steel
Handlebar Pro Taper, Aluminium Ø 22 mm (0.87")
Front suspension Marzocchi Ø 32 mm (1.26")
Rear suspension WP mono shock
Suspension travel front/rear 140 / 205 mm (5.51" / 8.07")
Front brake Disc brake Ø 160 mm (6.3")
Rear brake Disc brake Ø 140 mm (5.51")
Rims, front/rear 1.6 x 10"; 1.6 x 10" Alu
Tires, front/rear 2.50 x 10"; 2.75 x 10"
Chain 1/2 x 3/16"
Main silencer Aluminium
Steering head angle 67.4°
Wheel base 910 mm (35.83")
Ground clearance (unloaded) 220 mm (8.66")
Seat height 607 mm (23.9")
Tank capacity approx. 2.3 liters (0.61 gal)
Weight (no fuel) approx. 37.6 kg (82.89 lbs