The KTM 125 SXS is a high-performance motocross competition motorcycle engineered for demanding off-road racing. Produced between 1999 and 2010, this model represents KTM's dedication to delivering factory-level performance and innovation in the 125cc class. Known for its robust engineering, potent liquid-cooled, 2-stroke engine, and advanced WP suspension components, the 125 SXS was designed to excel on the motocross track, competing directly with leading models from other manufacturers. Its racing heritage and focus on agility and power output made it a favored choice for serious racers seeking a competitive edge.

This comprehensive workshop service repair manual provides essential information for the maintenance, repair, and diagnostics of the KTM 125 SXS models from 1999 to 2010. It covers all critical systems, including the engine, powertrain, chassis, suspension, brakes, and electrical components. Within its pages, you will find detailed procedures for routine maintenance, troubleshooting common issues, and complete repair or rebuild instructions, all supported by technical specifications, torque values, and clear diagrams. This manual serves as an indispensable resource for owners, mechanics, and technicians to ensure the optimal performance and longevity of their KTM 125 SXS.