PNEUMATIC TIRE

A pneumatic tire having a tread comprising a radially outer tread cap layer and radially inner tread cap layer at least partially underlying the outer tread cap layer is disclosed. The outer tread cap layer comprises a vulcanizable or vulcanized rubber composition comprising, based on 100 parts by weight of elastomer (phr), (A) from 80 to 20 phr of a solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) ranging from -85 °C to -50 °C; (B) from 20 to 80 phr of natural rubber; and (C) from 30 to 70 phr of a process oil; (D) from 70 to 150 phr of silica; wherein the weight ratio of silica to oil in the outer cap layer is less than 2.2. The inner tread cap layer comprises a vulcanizable or vulcanized rubber composition comprising: (i) from 60 to 40 phr of a solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) ranging from -85 °C to -50 °C; (ii) from 40 to 60 phr of natural rubber; (iii) from 5 to 40 phr of a process oil; (iv) optionally, from 5 to 15 phr of a hydrocarbon resin; and (v) from 60 to 90 phr of silica; wherein the weight ratio of silica to the sum of oil and hydrocarbon resin is greater than 2.2.