Assertion: radial tire's belt | /r/HasAspect | a double layer structure
Facets:
Source sentences:
text: In order to attain the above-described object, the pneumatic radial tire for a passenger car according to the present invention includes a plurality of grooves provided on the surface of a tread and extending at least in a tire circumferential direction and a belt having a double layer structure and provided within the tread, characterized in that the depth of the grooves is in the range of 6.0 to 8.5 mm, the thickness of a rubber under the groove defined as the distance from the bottom of the groove to the outermost belt layer is in the range of 0.5 to 2.5 mm, one of the belt layers comprises aramid fiber cords with the other belt layer comprising steel cords, and the total sectional area, α, of steel wires per 50 mm width of the belt layer comprising steel cords is 5 to 14 mm2.