Harris Magnum, produced in the United Kingdom from 1980 to 2015, was a series of high-performance motorcycles created by Harris Performance Products, a specialist racing and chassis manufacturer founded in 1972 by Steve and Lester Harris. The Magnum range became known for its hand-built chassis, advanced frame design, and use of high-performance engines from manufacturers such as Laverda, Yamaha, Suzuki, and Kawasaki. Characterized by lightweight construction, exceptional handling, and limited production, the Harris Magnum remains one of the most notable British-built performance motorcycle series of the late 20th and early 21st century.