The Buell Firebolt XB9R and XB12R models, produced in 2006, represent a pinnacle of sportbike engineering from a brand renowned for its innovative spirit and performance-focused design. These motorcycles, built on the versatile XB platform, showcase Buell's commitment to agile handling and potent power delivery, with the XB9R offering approximately 79 horsepower and the XB12R delivering around 97 horsepower from their air-cooled V-twin engines. Key features include Buell's distinctive 'Truss Frame' which cleverly doubles as the fuel tank, and the Zero-G Disc braking system, all contributing to a unique riding experience and a strong emphasis on mass centralization for exceptional maneuverability. This comprehensive workshop service and repair manual provides detailed, factory-level information essential for the maintenance and repair of your Buell Firebolt. It covers all major systems, including the powertrain, chassis, bodywork, and electrical components, offering step-by-step procedures for everything from scheduled maintenance and lubrication to complex disassembly, reassembly, and troubleshooting. With high-quality diagrams and diagnostic flowcharts, this English-language manual is an invaluable resource for Buell owners, DIY enthusiasts, and independent repair shops looking to keep their XB9R or XB12R in optimal condition.