The BETA Ark Air Cooled 50 is a lightweight off-road motorcycle produced by the Italian company BETA Motorcycles. It is powered by a 49.3cc, single-cylinder four-stroke engine, and features an air-cooled single overhead camshaft (SOHC) design. The motorcycle was designed to compete in the off-road enduro and motocross markets, as well as in the road market. It features an adjustable suspension, as well as a range of features and accessories, such as a headlight, an LED tail light, an under-seat storage compartment, a windshield, and an adjustable footpeg position.