Abstract: A handlebar riser assembly for use with a steering mechanism of a vehicle is disclosed. The riser assembly includes a pair of mounts for coupling a handlebar to a steering stem of a vehicle. Each mount includes a first member having an elongated slot and a protrusion extending from the side of the first member, and a second member having an elongated slot and a protrusion extending from the side of the second member. The first and second member are positioned together such that the protrusion from the first member is slidably disposed within the elongated slot of the second member, and the protrusion from the second member is slidably disposed within the elongated slot of the first member.