This manual covers the Firebolt XB9R and XB12R models from 2005. Known for their innovative engineering, the Firebolt series represented a significant advancement in sportbike design, featuring a V-twin engine as a stressed member of the frame and an oil-in-frame design. These motorcycles, developed by Erik Buell, were engineered for performance and handling, incorporating unique features such as the Zero Drag Friction Swingarm and a robust braking system. The XB9R models are powered by a 984 cc engine producing approximately 92 horsepower and 70 ft-lb of torque, while the XB12R features a larger 1203 cc engine delivering around 103 horsepower and 84 ft-lb of torque. Both utilize a 5-speed manual transmission with a belt drive system. This comprehensive workshop service repair manual provides detailed information for the maintenance, repair, and troubleshooting of your Firebolt. It covers all major systems, including the engine, chassis, fuel system, starter, and drivetrain, along with electrical components and wiring schematics. The manual offers step-by-step instructions, diagnostic procedures, technical specifications, and torque values, making it an essential resource for owners and professional technicians alike. Its detailed content ensures that all aspects of the vehicle, from routine servicing to complex repairs, can be addressed effectively, maintaining the performance and reliability of your motorcycle.