Abstract: The invention provides a road vehicle having two vehicular sections connected together by an articulation joint having on each side thereof a shock-absorbing or arrester device having a pair of arms adapted to engage each other through an abutment when the two vehicular sections pivot relative to each other in one direction and to become disengaged from each other when the two vehicular sections pivot relative to each other in the other direction. The abutment of each pair of mutually engaging arms has an interlocking profile to prevent lateral movement therebetween, and stop mechanisms are provided to retain each arm when they are disengaged from each other, in such a position that when they next become engaged owing to said vehicular sections pivoting in said one direction, said arms are positioned for interlocking engagement with each other.