While great effort is made to ensure the accuracy of the information on this site, errors can occur. Please verify all pricing and installed equipment information with a customer service representative. This is easily done by calling us or visiting us at the dealership.
We improve our products and advertising by using Microsoft Clarity to see how you use our website. By using our site, you agree that we and Microsoft can collect and use this data. Our privacy statement has more details.
Save your favorite vehicles for later viewing on your desktop or mobile devices.
Keep track of all the vehicles you've viewed for a better car shopping experience.
Narrow your search by comparing your favorite vehicles.
Riders are excited about the 2026 KTM 125 SX because it delivers full motocross performance in a lightweight, race-ready package. Its 124.8 cc two-stroke engine with fuel injection and a 6-speed gearbox provides high-revving power with precise control, perfect for competitive riding. The steel double-cradle frame, WP XACT 48 mm AER front fork, and WP XACT rear shock ensure handling that matches its performance capabilities. With features like selectable engine maps, electric start, and race-inspired ergonomics, the 125 SX is designed to give serious riders the power, control, and precision of a true motocross machine.