A tire with a radial carcass reinforcement comprising a crown reinforcement comprising at least one layer of circumferential reinforcing elements distributed axially at a variable pitch. The layer of circumferential reinforcing elements comprises five parts, namely a central part, two intermediate parts and two axially outer parts, the value of the pitch in an intermediate part being less than the value of the pitch in the axially outer part axially separated from the central part by the said intermediate part, and the value of the pitch in an intermediate part being less than the value of the pitch in the central part.