The Aprilia RS 250 Challenge Version, produced between 1995 and 2004, is a high-performance sportbike renowned for its exceptional handling and potent two-stroke V-twin engine, derived from Suzuki RGV250 Gamma components. This model, often prepared for track use, embodies Aprilia's rich racing heritage and Italian engineering prowess. Its lightweight aluminum twin-spar frame, powerful braking system, and responsive chassis contribute to its reputation as a premier 250cc sportbike of its era, offering an engaging and pure riding experience focused on mechanical feedback and rider skill. This comprehensive service manual provides in-depth technical features and servicing procedures for the Aprilia RS 250 Challenge Version, covering a wide array of systems including the fuel, cooling, engine, clutch, lubrication, transmission, wheels, tires, brakes, suspension, steering, frame, and electrical systems. It details routine maintenance, fluid changes, and detailed repair and diagnostic instructions for all major components, offering professional-level guidance equivalent to dealership technician manuals. This resource is essential for owners and technicians aiming to maintain the optimal performance and longevity of this specialized sportbike.