To provide a valve for a tire tube, a tube for a tire, a tire wheel assembly, and a wheel, which are advantageous in enhancing efficiency of tire-to-rim assembling work while reducing cost.

A lock part 50 is provided on a first stem part 46 of the valve 36 to prevent a tip of the first stem part 46 from coming off a stem insertion hole 4002. The stem insertion hole 4002 on a one-side bead seat detachable type rim 40 is formed into a circular shape with a slightly larger inner diameter than the outer diameter of the first stem part 46. The stem insertion hole 4002 on the one-side bead seat detachable type rim 40 is provided in a position deflected widthwise outward of the width center of the one-side bead seat detachable type rim 40.