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KTM 50SX

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A real KTM for the smallest of future MX champions. The 40 kg (87.7lb), lightweight 2013 KTM 50 SX sets standards in terms controllability and racing fun. It has everything including a high-quality chassis with easily applied disc brakes, top-quality components wherever you look, a powerful, reliable engine with easy-to-operate centrifugal clutch.

ENGINE

Design 1-cylinder 2-stroke engine, water-cooled, with reed intake
Displacement 49.0 cm³ (2.99 cu in)
Bore 39.5 mm (1.555 in)
Stroke 40 mm (1.57 in)
Starting aid Kickstarter
Gearbox Rigid 1-stage reduction gear
Engine lubrication Mixture oil lubrication
Primary transmission 33:61 straight cut spur gear
Secondary drive ratio 11:40
Cooling Water-cooled
Clutch Multi-disc automatic clutch on the main shaft/centrifugal force
Ignition SELETTRA 2p D36

CHASSIS

Frame Central tube frame of chrome molybdenum steel tubing, powder-coated
Fork WP Suspension USD 35
Shock absorber WP Suspension 3614 BAEM
Suspension travel Front 205 mm (8.07 in)
Suspension travel Rear 185 mm (7.28 in)
Brake system Front Disc brake with four-pot brake caliper
Brake system Rear Disc brake with two-pot brake caliper
Brake disc diameters Front 160 mm (6.3 in)
Brake disc diameters Rear 140 mm (5.51 in)
Chain 1/2 x 3/16”
Steering head angle 66°
Wheelbase 1,032±10 mm (40.63±0.39 in)
Ground clearance unloaded 252 mm (9.92 in)
Seat height unloaded 684 mm (26.93 in)
Fuel tank capacity, approx. 2.3 l (2.4 qt.)
Super unleaded gasoline (95 octane), mixed with 2-stroke engine oil (1:60)
Weight without fuel, approx. 41.5 kg (91.5 lb.)

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