| 摘要 |
Static electricity in a vehicle is discharged to a road surface without deteriorating uniformity. Tread rubber 2G includes base portion 9 made of a non-conductive rubber which is disposed radially inward and extends continuously from one tread edge e1 side to the other tread edge e2 side, cap portion 10 made of a non-conductive rubber and disposed radially outward of the base portion 9 to form ground-contacting surface 2a, and conductive portion 11 made of a conductive rubber and having one end exposed on the ground-contacting surface 2a and the other end connected to sidewall rubber 3G electrically conductive with a rim when the tire is mounted on the rim. The cap portion 10 are divided into right and left and includes first cap portion 10A and second cap portion 10B. The conductive portion 11 extends radially inwardly from the ground-contacting surface 2a between the first cap portion 10A and the second cap portion 10B and further extends axially between the base portion 9 and one of the first and second cap portions 10A and 10B to connect to the sidewall rubber 3G.
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