The BMW R80 GS and R100 GS, part of the R Series Airhead dual-sport motorcycle lineage, represent iconic adventure touring machines renowned for their ruggedness and versatility. Produced from the late 1980s to the mid-1990s, these motorcycles are characterized by their air-cooled, horizontally opposed twin-cylinder 'boxer' engines and shaft drive. They feature long-travel suspension, including the distinctive Monolever rear suspension on later models, designed to handle varied terrain. Their robust construction and legendary reliability have made them enduring choices for long-distance travel and adventure riding, cementing BMW Motorrad's legacy in this segment.

This workshop repair service manual provides comprehensive guidance for the maintenance and repair of the BMW R80 GS and R100 GS motorcycles. It covers all essential systems, including the engine, transmission, drivetrain, suspension, brakes, electrical system, and fuel system. Detailed procedures for routine maintenance, engine rebuilds, carburetor tuning, and component servicing are included, alongside troubleshooting guidance and technical specifications. This manual is an indispensable resource for owners, mechanics, and technicians seeking to preserve the performance and longevity of these classic dual-sport motorcycles.