Assertion: radial tire's carcass layer | /r/DefinedAs | following formula
Facets:
Source sentences:
text: The pneumatic radial tire according to the present invention for accomplishing the object described above comprises at least one carcass layer formed by arranging reinforcing cords, both end portions of which are turned up from the inside to the outside of the tire round right and left bead cores, respectively, and at least two belt layers formed by arranging reinforcing cords in such a manner that their inclining directions with respect to a tire circumferential direction cross one another in mutually opposite directions between the layers and disposed on the outer circumferential side of the carcass layer of a tread portion, characterized in that a carcass strength coefficient K of the carcass layer defined by the following formula (1) is set so as to satisfy a value of 0.15 to 0.35 N/mm·kPa at portions on the tread portion center side of positions P which are away by 10% of a belt width of a belt layer having the second greatest width from edges thereof towards its inside, and a value of at least 0.5 N/mm·kPa at portions ranging from the positions P to bead portions: