Abstract: Chain links of endless treads of heavy-duty vehicles are fitted with respective track shoes each having a frustopyramidal body of elastomeric material reinforced by steel profiles, i.e. a rectangular base plate rigid with an upstanding rib embedded in the body. The rib is flanked by elongate recesses accommodating countersunk screws by which each shoe is to be secured to a respective chain link, with its base plate extending transverse to the tread over the greater part of the length of that link. Major flanks of the body, extending transversely to the treads, are inclined to the base plate at angles not exceeding 60.degree..