Tire and method of producing the same

A method of producing a tire provided with a tread portion having three or more circumferential grooves and rib-form land portions defined by said circumferential grooves, said method comprising:

• forming a circumferential reinforcement layer by unwinding at least two independent rubber strips from different positions in the width direction of said tire, and then spirally winding said at least two independent rubber strips on a peripheral surface of the molding drum in the same direction, said rubber strips comprising a plurality of parallel cords covered with rubber,
• arranging said rubber strips with spaces between adjacent turns in a part or the entirety of said tire in the width direction;
• and
• at end portions of said rubber strips at positions where winding of said rubber strips is initiated or terminated, arranging at least medial end portions of the rubber strips located on the equatorial plane side of said tire at positions where said medial end portions completely overlap with one or more of said rib-form land portions in the width direction of said tire;
• wherein
• the width of said rib-form land portions overlapping with said medial end portions is defined as W (mm) and the width of said rubber strips is defined as G (mm), a relationship G<W is satisfied.