RADIAL TIRE

PURPOSE:To soften a push-up shock to a vehicle when it runs over a projection, without reducing durability, riding comfort and steering stability, by specifying the sectional form of the outer skin of a tire so as to increase the load energy required until it reaches the rim-touch. CONSTITUTION:When the radial distance between a point P1 on the tread outer face and a point C on the tire equator is expressed in HA, the distance between the point P1 and a point P2 on the tread inner face is expressed in HB and the distance between the point P2 and a point P3 on the bead inner face is expressed in HC, in the sectional view of the outer part of a tire, relation among them is made to be (HA+HC)/(HA+HB+HC)>=0.818. When the distance between the point P3 and a point P4 on the inner face of the side wall part 3 having the maximum width is expressed in HD and the distance between the point P4 and the reference line X passing the bead heal point P0 is expressed in HE, relation between them is made to be HE/HD