The XV1900, also known by its model nicknames Roadliner, Stratoliner, and Raider, represents a significant offering in the cruiser motorcycle segment. Introduced around the mid-2000s and produced until approximately 2017, these motorcycles are characterized by their large displacement, air-cooled, 4-stroke, V-twin engines, with a notable 1854 cc capacity. They feature a SOHC, 4-valve per cylinder configuration, fuel injection, and a smooth, low-maintenance belt drive for the final drive. Designed for riders seeking a comfortable and powerful machine for touring and cruising, the XV1900 platform competed with established American brands. Its classic V-twin cruiser styling, combined with a reputation for engineering quality and reliability, made it a compelling choice, with variants offering different levels of touring comfort and custom aesthetics. This comprehensive workshop manual provides detailed guidance for the maintenance, repair, and troubleshooting of the XV1900 models. Covering all major systems including the engine, transmission, fuel system, electrical system, chassis, suspension, and brakes, this manual is designed for a wide audience, from novice DIY enthusiasts to experienced technicians. It includes step-by-step procedures for routine maintenance, engine rebuilds, component overhauls, and electrical diagnostics, supported by clear diagrams and specifications. The manual's extensive scope ensures that users can effectively maintain their vehicle's performance, address potential issues, and understand its technical intricacies, thereby promoting longevity and optimal operation.