Patent ID: 8210304

Claim:
A motorized board on which a rider stands, comprising; a chassis having a longitudinal axis and a rider platform for accommodating the rider standing on the board; a front track assembly attached to a front portion of the chassis; a rear track assembly attached to a rear portion of the chassis, wherein each track assembly includes: a plurality of rollers; a continuous track looped around the rollers; a track assembly mounted electric motor for driving the respective track assembly; wherein each track assembly provides a track width defined by respective left and right peripheries of the tracks mounted thereon, wherein each track extends generally continuously across the track width; wherein each track has at least one of a generally convex longitudinal profile and a generally convex lateral profile; wherein each track assembly includes a sub-chassis connected to the chassis by means of a hanger assembly; wherein each electric motor is mounted on the sub-chassis in the respective track assembly outside of the track and adjacent the hanger assembly; wherein at least one track assembly is configured to yaw with respect to the longitudinal axis of the chassis in response to the rider adjusting lateral mass distribution on the chassis; wherein the rider standing on the board steers the board by adjusting lateral mass distribution on the chassis; and wherein mass is distributed toward a direction of an intended turn.