The BMW R1150GS, produced from 1998 to 2005, is a large-displacement adventure touring motorcycle renowned for its ruggedness, touring capability, and off-road prowess. It features a torque-rich, air/oil-cooled, horizontally opposed twin-cylinder boxer engine with a displacement of 1130 cc, delivering approximately 95 hp and 73 lb-ft of torque. Key unique selling points include its Telelever front suspension for enhanced handling and comfort, robust build quality, and exceptional long-distance touring capabilities. The R1150GS is designed for riders seeking versatility, capable of handling varied terrains and extended journeys.

This comprehensive service and repair manual in English provides detailed guidance for the full service, repair, maintenance, rebuilding, refurbishing, and restoration of the BMW R1150GS (chassis code R259). It covers all major systems, including the engine, transmission, electrical system, suspension, brakes, and fuel system, along with specific maintenance procedures such as oil changes, valve adjustments, and component replacements. The manual also includes diagnostic information and troubleshooting for common issues, ensuring owners and technicians have the necessary knowledge to maintain the vehicle's reliability and performance.