STUDLESS TIRE

摘要

There is provided a studless tire that is excellent especially in performance on a snow or ice road. A studless tire, wherein non-metal staple fibers having an average fiber diameter of 1 to 100 .mu.m and an average length of 0.1 to 5 mm are dispersed in a diene rubber in such a way that the non-metal staple fibers are oriented in a thickness direction of a tread, a complex elastic modulus E1 in the thickness direction of the tread and an elastic module E2 in a circumferential direction of the tire measured at 25.degree.C satisfy the equation 1.1 ~ E1/E2 ~ 4, and hardness o f the tread rubber measured at -10.degree.C is 45 to 75 degrees.