KTM 125 SX

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

• wet multi-disc clutch, Brembo hydraulics

EMS

• Kokusan

CHASSIS

FRAME DESIGN

• 25CrMo4 steel central-tube frame

FRONT SUSPENSION

• WP-USD, AER 48, Ø 48 mm

REAR SUSPENSION

• WP shock absorber with linkage

SUSPENSION TRAVEL (FRONT)

• 310 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

• 5/8 x 1/4"

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)

• 87.2 kg