This manual covers the Aprilia RS 660 and Aprilia Tuono 660, models built around the innovative APX parallel-twin engine. These motorcycles represent Aprilia's commitment to delivering accessible performance and advanced technology in the middleweight sportbike and naked sportbike categories. Known for their lightweight construction, characterful 659cc engines producing 100 HP, and comprehensive electronic rider aids including traction control and ABS, these bikes are designed for both spirited riding and everyday usability. The platform philosophy emphasizes a blend of sporty dynamics with practical application, drawing on Aprilia's rich racing heritage.

This comprehensive service and repair manual provides detailed guidance for the maintenance and repair of your Aprilia RS 660 or Tuono 660. It covers a wide range of systems, including engine mechanical and electrical components, transmission, chassis, suspension, brakes, and the general electrical system. You will find in-depth procedures for routine maintenance, major repairs, and troubleshooting common issues. The manual also includes essential technical specifications, wiring diagrams, and information on special tools required for various tasks. Its purpose is to empower owners, technicians, and mechanics with the knowledge necessary to keep these Aprilia models in optimal condition.