Abstract: A tensioning assembly for a track-laying vehicle having a track trained around the leading edge of a front wheel and the lagging edge of a rear wheel where at least one of the wheels is mechanically or hydraulically driven by the vehicle's motor. The tensioning assembly includes: (1) a rigid beam assembly made of a beam element telescopically and adjustably slid inside a rigid hollow member; (2) a front and rear set of bearings attached to each end of the rigid beam assembly; (3) front and rear shafts respectively journaled in the front and rear bearing sets; and (4) a plate to respectively attach the front and rear shafts to the external face of the hubs of the front and rear wheels.