As always, the suspensions are very easy to set up without tools on both axles, ensuring you head out on the podium hunt in complete control. At the rear, the shock design with dual, hand-adjustable compression controls allows riders to fine-tune high- and low-speed settings in a matter of seconds. At the front, the fork is also easily adjusted thanks to the hand-operated controls on the lower mount and the upper fork cap.
THEY ARE NOT PLANES, THEY ARE ROCKETS
Electronic fuel injection
The KTM SX 2-stroke range is experiencing a real revolution with the addition of electronic fuel injection as standard. Forget about adjusting the fuel carburation before each race. And thanks to the new reed intake design and Keihin electronic fuel injection, you can be sure of optimal power at any altitude, every time.
CHUGGA CHUGGA, RING DING DING!
Start Button
Picture this: you're 7 laps from the end of an absolutely thrilling race. You miss the line and end up stuck in a deep rut. But Don't worry. All you have to do is press the start button and shoot off again to cross the flag first. This is the reality of the 2025 KTM 125 SX. Thanks to a 12.8V 2Ah lithium-ion battery placed under the seat, a new high-quality stator and pickup, and a super-robust design, the only thing You're going to kick your rivals' butts.
< span class="c-benefit__feature-name">GET INTO ACTION
Easy suspension adjustment
As always, the suspensions are very easy to set up without tools on both axles, ensuring you go hunting for the podium in complete control. At the rear, the shock absorber design with dual hand-adjustable compression control allows riders to fine-tune your high and low speed settings in a matter of seconds.
2024 125 SX Km 0
Data sheet
Tipo constructivo
Motor monocilíndrico de 2 tiempos
Cilindrada
293.2 cm³
Diámetro
72 mm
Carrera
72 mm
Ayuda para el arranque
Pedal de arranque y arranque eléctrico
Cambio
6 marchas
Transmisión primaria
26:72
Transmisión secundaria
14:50
Embrague
Embrague multidisco DDS en baño de aceite, sistema hidráulico Brembo
EMS
Kokusan
Chasis
Chasis tubular central en acero al cromo-molibdeno
Suspensión delantera
Invertida de WP Ø 48 mm
Suspensión trasera
Amortiguador PDS de WP
Freno delantero/ trasero
Freno de disco
Recorrido de la suspensión Delante
300 mm
Recorrido de la suspensión Detrás
335 mm
Discos de freno - diámetro Delante
260 mm
Discos de freno - diámetro Detrás
220 mm
Ángulo de la dirección
63.5 °
Distancia entre ejes
1482 ± 10 mm
Altura libre sobre el suelo sin carga
355 mm
Altura del asiento sin carga
960 mm
Capacidad aprox. del depósito de combustible
9.5 l
Peso ready to race
102.1 kg
New
KTM 2025 125 SX Km 0
10,555.00
7,999.00
Save 2,556.00
2024 125 SX Km 0
LIMITED PROMOTION: Registration Km 0!
There are very few sounds that can't be beaten. The crack of a soda can on a scorching hot day. The ping of a perfectly executed golf shot. And the howl of a 125cc 2-stroke barreling down a long straightaway. The 2025 KTM 125 SX takes its lead directly from the Factory Racing team and puts it to work like there's no tomorrow. Just like the sound it makes, it's second to none.
This bike is designed, developed and produced in Austria.
