This manual covers the 2006 Softail FLHRS Road King Custom, a cruiser motorcycle renowned for its iconic V-twin engine and custom styling. Built upon the dependable Softail platform, this model combines the classic look of a hardtail frame with the comfort of hidden rear suspension. Its Twin Cam 88 engine, a 1450cc air-cooled V-twin, delivers robust performance with approximately 70 horsepower and 86 lb-ft of torque, featuring Electronic Sequential Port Fuel Injection for efficient operation. The FLHRS distinguishes itself with a lower profile and custom aesthetic, including chrome laced wheels and a chopped rear fender, making it a standout in the cruiser segment. This comprehensive service repair manual provides detailed information for maintaining and repairing the 2006 Softail FLHRS Road King Custom. It encompasses all essential areas, including powertrain (engine, transmission, drivetrain), chassis (suspension, brakes, wheels, tires), and electrical systems. The manual offers step-by-step instructions for scheduled maintenance, fluid changes, component disassembly and reassembly, and troubleshooting common issues. High-quality diagrams and clear explanations are included to assist professional technicians, DIY mechanics, and owners in ensuring the optimal performance and longevity of their motorcycle.