Authorized KTM Dealer · Baxter, MN
2027 KTM 125 SX
KTM 125 SX
What you get
A championship-bred motocross weapon built to dominate the start gate and every jump in between.
- 125 CC
- WP XACT-USD
- 6-speed Transmission
- Chromoly Steel Frame
Full specifications
ENGINE
Design1-cylinder, 2-stroke engine
Displacement124.8 cm³
Transmission6-speed
Fuel-mixture generationKeihin EFI, throttle body 39 mm
EMSVitesco Technologies EMS
Clutch primary drive teeth73
Primary drive23:73
ClutchWet multi-disc DS clutch, Brembo hydraulics
Clutch operationBrembo hydraulics
Engine cylinderSingle cylinder
Engine stroke2-Stroke
CHASSIS
Frame designCentral double-cradle-type 25CrMo4 steel
Front brakeDisc brake
Rear brakeDisc brake
Rear subframe designAluminum-reinforced polyamide
Chain520, Non-sealed
SUSPENSION
Front suspensionWP XACT-USD (AER), Ø 48 mm
Rear suspensionWP XACT Monoshock with linkage
Suspension travel (front)310 mm
Suspension travel (rear)300 mm
Front suspension adjustmentCompression (high and low speed), rebound
Rear suspension adjustmentCompression and rebound adjustable
DIMENSIONS
Seat height958 mm
Ground clearance359 mm
Tank capacity (approx.)7.2 l
Weight (without fuel)92 kg