Diana Bike's The bike mounted with a pair of front wheels, Butterfly was born by the Korean advanced technology.Diana Bike's The bike mounted with a pair of front wheels, Butterfly was not created in a night. We have poured our utmost efforts for the standardization of the public bicycle, localization of the bike, developing the world market of the The bike mounted with a pair of front wheels. Diana Bike holds two patents as follow;The bike mounted with a pair of front wheels(No.10-0889463)The recumbent bike with a pair of front wheels(No.10-0908789)Diana Bike Ltd. was certified as a small and medium venture company by the Technology Guarantee Fund on June 2, 2009. And also, Diana Bike Ltd. has currently launched a mass production system after registered for a manufacturing plant in the Daedeok Industrial Complex.