Pneumatic tire including short fibers

摘要

A pneumatic tire comprises: a tread rubber having a blended rubber portion constituted by a short fiber blended rubber obtained by adding a nonmetal short fiber to a rubber base material forming a tread surface and having a rubber hardness Hs1 (a durometer A hardness) at 25 deg. C. of 58 to 72 degrees; the short fiber being harder than an ice and having an average fiber diameter of 5 to 50 micrometers, an average length of 0.05 to 5.0 mm and a blended amount with respect to a rubber base material 100 weight portion of 2 to 20 weight portion; and the blended rubber portion being provided with a base portion obtained by directing said short fiber in a tread thickness direction, and a surface portion arranged in a radially outer side of the base portion so as to form the tread surface and obtained by directing said short fiber in a direction parallel to said tread surface.