With it's knock back ability and relatively easier access to tame then most mid tier carnivores, Trikes can excel as base guards and can be the cornerstone in fighting off alpha raptors early to mid game. Level up health, dmg, and stamina.
I can not stress enough to my friends how useful the trike is. Early game it makes a great pack animal. Late game in groups of three or four it can be used as a decent battle mount. Taming a trike early on can be a great way to start a large base and keep you well fed with berries.