The Aprilia RSV Mille, a high-performance sportbike introduced in 1998, represents Italian engineering prowess with its longitudinal V-twin engine. This 1999 model, chassis code RP, is celebrated for its potent 998 cc, 120-130 hp V-twin engine, renowned for its power and handling characteristics, placing it firmly in the superbike category. Designed with a focus on delivering an exhilarating riding experience, the RSV Mille features advanced components for its time, including an aluminum alloy twin-spar frame, inverted cartridge forks, and a sophisticated monoshock rear suspension, all contributing to its sharp handling and overall performance, making it a compelling alternative to other European rivals. This comprehensive workshop service and repair manual is designed to provide detailed guidance for the maintenance, repair, and troubleshooting of the Aprilia RSV Mille. It covers a wide array of systems, including the engine, fuel supply, cooling, electrical, and chassis components, offering in-depth procedures for everything from routine oil changes and valve adjustments to more complex engine rebuilds and electrical system diagnostics. With its extensive coverage, including wiring diagrams, torque specifications, and symptom-based troubleshooting, this manual serves as an essential resource for owners and technicians alike to ensure the optimal performance and longevity of their motorcycle.