The Yamaha Aerox is an all-terrain, two-wheeled vehicle that has been produced by Yamaha Motor Corporation since 1997. It is available in 50cc and 100cc engine sizes, and is marketed as a highly customizable, sports-oriented super-scooter. Common features on the Aerox include a two-person seating, automatic twist-and-go transmission, and alloy wheels. It is commonly used for personal transportation, commuting, and racing competitions.