The BMW R90 is a classic motorcycle produced by BMW from 1973 to 1976. It features a 900cc air-cooled, flat-twin engine, known for its reliability and smooth performance. The bike is part of the BMW R series, which is renowned for its innovative engineering and design. With a distinctive retro style, the R90 combines a comfortable riding position with a lightweight frame, making it suitable for both city commuting and long-distance touring. Its iconic design and engineering have made it a favorite among motorcycle enthusiasts and collectors alike.