The 50 SX is a true KTM for young MX riders aged from around four to 10 years old, up to a body height of 1.30m. A genuine motorcycle that, like its bigger siblings, is produced with quality components that make the 50 SX the first choice as a stepping stone into the MX world or for the first racing step on the ladder. With the youngster in mind this package is easy to control and has an engine that is distinguished by a steady power delivery, incorporating an automatic clutch that is ideal for novice riders. For MY 2016 the 50 SX presents itself with newly designed bodywork that provides better ergonomics and makes the bike even easier to ride.

ENGINE

DESIGN 1-cylinder 2-stroke engine, water-cooled, with reed intake
DISPLACEMENT 49.0 cm³
BORE 39.5 mm
STROKE 40 mm
STARTING AID Kickstarter
TRANSMISSION Rigid 1-stage reduction gear
ENGINE LUBRIFICATION Separate lubrication
PRIMARY GEAR RATIO 33:61 straight cut spur gear
FINAL DRIVE 10:42
COOLING SYSTEM Liquid cooling system
CLUTCH Multidisc automatic clutch on the main shaft / centrifugal force
IGNITION SYSTEM SELETTRA 2p D36

CHASSIS

FRAME Central tube frame of chrome molybdenum steel tubing, powder-coated
FORKS WP Suspension USD 35
SHOCK ABSORBER WP Suspension 3614 BAEM
SUSPENSION TRAVEL FRONT100 mm
SUSPENSION TRAVEL REAL 171 mm
BRAKE SYSTEM FRONT Disc brake with four-pot brake caliper
BRAKE SYSTEM REAR Disc brake with two-pot brake caliper
BRAKE DISC - DIAMETER FRONT 160 mm
BRAKE DISC 0 DIAMETER REAR 160 mm
CHAIN 1/2 x 3/16”
STEERING HEAD ANGLE 67.4°
WHEEL BASE 914±10 mm
GROUND CLEARANCE (UNLOADED 184 mm
SEAT HEIGHT (UNLOADED) 558 mm
TOTAL FUEL TANK CAPACITY 2.3 l Unleaded premium fuel (95 RON) 
WEIGHT WITHOUT FUEL 39.0 kg

KTM SX 50 2016
KTM 1190 RC8 R