The Panther motorcycle brand, produced in England from 1902 to 1967, was a British manufacturer based in Cleckheaton, Yorkshire, known for its distinctive single-cylinder motorcycles. Originally founded as Phelon & Moore, the company developed a unique sloping engine design that became a hallmark of Panther machines. The marque produced a wide range of models, from lightweight commuters to large-capacity singles such as the M100, renowned for strong torque and durability. Panther motorcycles were characterized by robust engineering, simplicity, and long service life, securing the brand a distinctive place in British motorcycling history.