A track assembly includes a frame configured to be coupled to a chassis of a vehicle, a first wheel and a second wheel each pivotally coupled to the frame, a track engaging the first wheel and the second wheel, and a motor coupled to the track and the frame. The track extends along a track path that surrounds the first wheel and the second wheel. The motor is configured to drive the first wheel such that the track moves along the track path. The motor and the first wheel are aligned.