PNEUMATIC STUDLESS TIRE

摘要

A pneumatic studless tire has a tread formed from a cellular rubber and short fibers distributed therein. All-weather tire performance is ensured by a specified blend of a blowing agent and a urea-based additive, a specified average cellular area X over a sectional surface of the tread, a specified variation coefficient K of the cellular area X, a specified cellular occupancy rate and a specific orientation of short fibers in the tread.