PNEUMATIC TIRE FOR SHOW-ICY ROAD

摘要

PROBLEM TO BE SOLVED: To improve both of icy performance and dry turning performance as suppressing drop in snowy performance. SOLUTION: In this tire, two blocks 4 are merely formed in an inner tread surface area 1 at the tire vehicle attached inside from a tire center line CL, while a plurality of ribs 5 extending in the tire circumferential direction are set up in an outer tread surface area at the tire vehicle attached outside. A groove area ratio of the inner tread surface area 1 is 45±15% to an area of the area 1, and a groove area ratio of the outer tread surface area O is 25±15% of the area O, and the groove area ratio of the inner tread surface area 1 is made larger by 5% or more than the outer tread surface area O.