To secure conductivity while keeping an amount of conductive rubber materials small.

Tread rubber includes a tread rubber body with a belt-like tread rubber member wound circumferentially around a tire by one round and a tread adhesive layer mutually gluing both circumferential end surfaces of the tread rubber body. The tread rubber body has a ground rubber part forming a part of a tread ground surface and extending continuously in the circumferential direction of the tire without radially penetrating the tread rubber body inward or outward. A side rubber layer is arranged on a sidewall in a state that a radially outer end is in contact with the tread adhesive layer and a radially inner end is in contact with clinch rubber. The ground rubber part, the tread adhesive layer, the side rubber layer, and the clinch rubber are formed of the conductive rubber materials.