Patent ID: 7559578

Claim:
A vehicle chassis assembly comprising: a plurality of wheels, each wheel having a rotational axis; a frame assembly supported by the wheels, wherein a portion of the frame assembly is located below the rotational axis of at least one of the wheels, the frame assembly comprising a plurality of frame members defining a first frame portion and a rear frame portion angling upward with respect to the first frame portion, wherein the entire rear frame portion is located rearward of all of the plurality of wheels, and the rear frame portion extends upward and rearward from the first frame portion in a cantilever arrangement, and wherein the rear frame portion comprises a first angling frame member and a second angling frame member extending from the first frame portion to a back edge of the chassis assembly in a direction oblique to a centerline of the chassis assembly; and an exhaust pipe extending longitudinally through the first angling frame member.