2027 KTM 50 SX WINNING STARTS HERE The journey starts here. The first prime platform in the KTM Sportminicycle range will satisfy any youngster's thirst for fun, speed, adventure and that unquenchable desire to learn. The KTM 50 SX is built around an advanced steel frame, housing a powerful engine, a WP XACT AER fork, a WP XACT monoshock, and a advanced hydraulic Formula brake system. Reliability, durability and READY TO RACE aesthetics and spirit means it is the only choice for small kids and the big ones too! Before The Gate THE HEART Carburetor A proven Dell'Orto type PHBG 19 BS carburetor takes a prime position in producing the goods in the KTM 50 SX, working perfectly in harmony with the engine, exhaust, and air intake design. FIND THE RIGHT FIT Adjustablity Different adjustability options were built into the KTM 50 SX using scientific statistical data and feedback from young racers. Finding the perfect fit for your little ripper is easy thanks to height-adjustable suspension, adjustable handlebar positioning, subframe, and bodywork. This allows the seat height to be adjusted from a low setting of 634 mm up to 682 mm, while the KTM 50 SX comes standard from the factory with a seat height of 653 mm. GET STARTED Ignition A digital ignition with improved processing power makes for a cleaner burn and smoother power delivery. Individual ignition timing across the entire rpm range, just like that found on the full-sized KTM SX range, adds a key advantage. The throttle cable assembly benefits from a new stabilization cap that extends the lifetime of the cable by reducing the risk of kinking and damage. Start Strong BRIGHT SPARK Spark Plug There's no more worrying about breaking the plug, thanks to the KTM 50 SX featuring a spark plug from BRISK with a longer thread. Also, thanks to this innovation, the part number is printed on the spark plugs for easy reading. UNMATCHED PERFORMANCE Performance The KTM 50 SX features a modern and compact engine using the latest 2-stroke technology. Using a 3-shaft design, the crankshaft is positioned near the center of gravity, which not only benefits mass centralization but also creates the ideal intake angle into the reed valve for top-level performance. For 2026, the transmission shafts are new developments with wider dimensions and several components have been reinforced to enhance durability. WHOA NELLY! Power-Reduction Kits For absolute beginners, the KTM POWERPARTS catalog offers a choice of two power-reduction kits. The first allows for a entry-level, moderate and controllable power reduction to 4hp, with the second permitting more intermediate power kit unleashing 8hp for mid-level riding levels. RACE-MATIC Clutch The KTM 50 SX is fitted with a centrifugal clutch reducing the complexity for younger riders, and helping to boost riding confidence. The multi-disc clutch delivers a precise and predictable power delivery across the RPM range. It can be set to suit rider preferences or track conditions without using any special tools. Also, a reinforced clutch basket provides extra durability, wear, and consistent performance. The clutch itself receives a boost in quality with a high-strength pre-coat and increased tightening torque for reliable fastening of the whole assembly. BRIGHT SPARK Spark Plug There's no more worrying about breaking the plug, thanks to the KTM 50 SX featuring a spark plug from BRISK with a longer thread. Also, thanks to this innovation, the part number is printed on the spark plugs for easy reading. Calm Under Fire BUILT TOUGH Frame The KTM 50 SX boasts a high-strength chromium molybdenum steel frame design with forged connecting parts integrated into the frame. This together with carefully calculated parameters of longitudinal flex and torsional rigidity, allow tailormade stiffness and an unprecedented quality of the Mini frame. The frame layout features a typical MX design without any cross tube behind the steering head. Like our full-size models, the rear shock mount is separated from the main upper frame tube. The frame also comes with frame protectors as standard. BREATHE CLEAN Airbox and Filter The airbox features a conventional suction sleeve made from a hard-wearing polyamide instead of rubber and a Twin Air filter mounting system that features snap locks for easy and intuitive mounting. The Twin Air filter is also placed under the seat and is easily accessible without any tools by simply removing the seat. It also features improved dirt intrusion resistance, with no more dirt falling into the intake tract when changing the filter. SLIMMER AND SLEEKER Ergonomics Mimicking the full-size KTM SX range, the KTM 50 SX features the same advancements found in the larger KTM SXs. Slimmer, sleeker, and better suited to standing on the pegs, the side panels work much better with young riders' boots, allowing a proper squeezing of the bike when standing up. The front number plate incorporates plastic flaps to prot