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.
Description
Description
The 2026 KTM 125 SX is a high-performance two-stroke motocross machine engineered for riders who demand precision, agility, and raw power. At its core is a 124.8 cc liquid-cooled single-cylinder engine equipped with Electronic Fuel Injection (EFI) and a 39 mm Keihin throttle body. This setup delivers smooth power delivery and crisp throttle response, ensuring optimal traction and control on any track.
Weighing in at just 91.9 kg dry, the 125 SX boasts a lightweight design that enhances maneuverability and reduces rider fatigue. The central double-cradle 25CrMo4 steel frame provides a balance of strength and flexibility, contributing to exceptional handling and rider feedback. Paired with WP XACT suspension components, including a 48 mm AER USD air fork with 310 mm of travel and a WP XACT monoshock with 300 mm travel, the bike offers superior shock absorption and adjustability to suit various riding conditions.
The 2026 model introduces a map select switch, allowing riders to choose between two engine maps: Map 1 for linear, predictable power delivery and Map 2 for explosive, aggressive power output. This feature provides versatility to adapt to different track conditions and rider preferences.
Designed with the READY TO RACE philosophy, the 125 SX incorporates easy-to-adjust suspension settings, tool-free adjustments, and a robust design for quick maintenance. The aluminum-reinforced polyamide subframe and 7.2 litre fuel tank contribute to the bike's lightweight and durable construction.
