The Buell Firebolt XB12R, produced in 2004, is a testament to innovative engineering, embodying Buell's philosophy of sports performance and distinctive design. Powered by an air-cooled, 1203 cc V-twin Thunderstorm engine, this model delivers approximately 95 hp and 83 ft-lbs of torque, coupled with a 5-speed transmission and belt drive. Its unique Zero-Drag-Race-Design frame serves as an oil reservoir, contributing to its advanced chassis. Known for its exceptional handling, sporty performance, and a rider-focused experience, the Firebolt XB12R has garnered praise for its engineering and styling. This comprehensive service manual provides detailed workshop repair and overhaul procedures for the Buell Firebolt XB12R. It covers all essential systems, including the engine, transmission, and electrical components, offering in-depth instructions for routine maintenance, disassembly, assembly, and advanced diagnostics. The manual also references specific special tool numbers and includes guidance on proprietary components. Designed for mechanical technicians and knowledgeable owners, this English-language resource offers reliable information comparable to that found in authorized dealer service departments, empowering users to maintain and repair their vehicle effectively and save on costs.