Abstract: The present invention relates to a combined directional and infinitely variable speed transmission which, through a single continuous V-belt pulley drive mechanism, is capable of infinitely variable changing speeds and direction with a single control. It employs an axially adjustable non-rotatable drive inducing input pulley whose effective operaing diameter can be adjusted to vary its dimentional ratio with a rotatable, fixed diameter orbiting output pulley rotatable driven on its own axis by a walking motion of the connecting V-belt about the non-rotatable input pulley. Prior art transmission all require some type of forward-reverse directional change mechanism completely separate and apart from the speed section of the transmission. The present invention eliminates such separate directional devices by being able to manipulate the ratio between the effective operating diameters of the pulleys to change direction at the same time that such ratio is determining the output speed of the transmission.