TBR PNEUMATIC TIRE

A TBR pneumatic tire comprising a carcass, a tread and at least one "high elongation belt" formed by a single cord having a lay angle [theta] of between 0.03 DEG and 0.1 DEG and comprising an axial extension CW wherein the ratio of the axial extension CW to the axial extension of the tread (TW/CW) is between 1.1 and 1.4. The tread is made from a rubber compound comprising a cross-linkable unsaturated chain polymer base comprising at least 50% by weight of natural rubber (NR), a filler mixture comprising (a) a carbon black having a surface area between 99 and 170 m2/g and a structure greater than 120 cc/100 g, (b) a first silica having a surface area less than 100 m2/g, and (c) a second silica having a surface area greater than 190 m2/g. 一种TBR充气轮胎，其包括胎体、胎面和至少一条"高伸长率带束"，所述"高伸长率带束"由铺设角θ为0.03°和0.1°之间的单根帘线形成，并且包括轴向延伸CW，其中轴向延伸CW与所述胎面的轴向延伸的比率(TW/CW)在1.1和1.4之间。胎面由橡胶配混物制成，所述橡胶配混物包括包含至少50重量％的天然橡胶(NR)的可交联的不饱和链聚合物基料、填料混合物，所述填料混合物包括(a)表面积在99至170m2/g之间且结构大于120cc/100g的炭黑，(b)表面积小于100m2/g的第一二氧化硅，和(c)表面积大于190m2/g的第二二氧化硅。