The whip cracking KTM 125 SX has been buzzing at the front for years. If it is up to us, it stays there for many more seasons to come. A compact build and the lowest weight out there team up for the win with a glorious 2-stroke engine, fitted in a state-of-the-art chassis. Get shredding, youngsters.

ENGINE

DESIGN 1-cylinder, 2-stroke engine
DISPLACEMENT 124.8 cm³
BORE 54 mm
STROKE 54.5 mm
STARTER Kickstarter
TRANSMISSION 6-speed
PRIMARY DRIVE 23:73
SECONDARY GEAR RATIO 13:50
CLUTCH Multi-plate clutch, Brembo hydraulics
EMS Kokusan

CHASSIS

FRAME DESIGN Chrome-molybdenum steel central-tube frame
FRONT SUSPENSION WP USD Ø 48 mm 4CS closed cartridge
REAR SUSPENSION WP monoshock with linkage
SUSPENSION TRAVEL (FRONT) 300 mm
SUSPENSION TRAVEL (REAR) 300 mm
FRONT BRAKE Disc brake
REAR BRAKE Disc brake
FRONT BRAKE DISC DIAMETER 260 mm
REAR BRAKE DISC DIAMETER 220 mm
CHAIN 520
STEERING HEAD ANGLE 63.9 °
WHEELBASE 1485 ± 10 mm
GROUND CLEARANCE 375 mm
SEAT HEIGHT 960 mm
TANK CAPACITY (APPROX.) 7 l
WEIGHT READY TO RACE (WITHOUT FUEL) 89.2 kg
KTM 125 SX 2017
KTM 1190 RC8 R