FULL-SCREAM AHEAD

There are very few sounds that can't be beaten: the crack of a soda can on a blistering hot day, the ping of the perfectly executed golf shot, and the scream of a 125 cc 2-stroke full throttle. The KTM 125 SX takes its leads directly from the KTM Factory Racing team for pure performance, pure results. Like the sound it makes, you won't forget it.

Engine

Design

1-cylinder, 2-stroke engine

Displacement

124.8 cm³

Transmission

6-speed

Fuel-mixture generation

Keihin EFI, throttle body 39 mm

EMS

Vitesco Technologies EMS

Clutch primary drive teeth

73

Primary drive

23:73

Clutch

Wet multi-disc DS clutch, Brembo hydraulics

Clutch type

DS multi-disc wet clutch

Clutch operation

Brembo hydraulics

Engine cylinder

Single cylinder

Engine stroke

2-Stroke

Chassis

Frame design

Central double-cradle-type 25CrMo4 steel

Front brake

Disc brake

Rear brake

Disc brake

Rear subframe design

Aluminum-reinforced polyamide

Chain

520, Non-sealed

Suspension

Front suspension

WP XACT-USD (AER), Ø 48 mm

Rear suspension

WP XACT Monoshock with linkage

Suspension travel (front)

310 mm

Suspension travel (rear)

300 mm

Front suspension adjustment

Compression (high and low speed), rebound

Rear suspension setting

Compression and rebound adjustable

Dimensions

Seat height

958 mm

Ground clearance

359 mm

Tank capacity (approx.)

7.2 l