The 125 Duke and 200 Duke models, produced in 2013 and distributed across Europe, Malaysia, and Colombia, represent a commitment to delivering lightweight, performance-oriented naked sportbikes. These motorcycles are characterized by their aggressive styling, agile handling, and a 'Ready to Race' ethos, making them ideal for new riders and urban commuters. Built with a focus on quality engineering, they feature robust trellis frames, advanced suspension systems, and efficient fuel-injected engines, offering a compelling blend of performance and everyday usability. This manual is designed to support the maintenance and upkeep of these distinctive machines. This comprehensive Service Repair Workshop Manual in English provides in-depth coverage for all listed Duke models. It details procedures for every major system, including the engine, fuel, cooling, lubrication, ignition, and electrical systems, as well as chassis components like the brakes, suspension, and wheels. The manual includes step-by-step instructions for maintenance, troubleshooting, disassembly, reassembly, adjustments, and component replacement, supported by detailed diagrams and technical data. Its scope extends from routine servicing to complex overhauls, equipping owners and technicians with the necessary knowledge to ensure optimal performance and longevity of their Duke motorcycle.