Cojoy is a bicycle concept for two persons, inspired from the dual paddle boat along with an operational wheelchair, and is designed to offer sheer fun for the bicycle riders. Each rider is designed to control one wheel separately of the bicycle. The seat angle of the concept is totally adjustable by using the handle according to the need of individual riders. It runs straight when two riders pedal at the same speed and when it requires to turn, the outer rider will ride faster than the inside rider. Riding this bicycle requires a good communication, cooperation and a minimum skill.