An improved radial ply tire

AN IMPROVED RADIAL LAYER TIRE 30 IS DESCRIBED. THE IMPROVED TIRE 30 HAS A FIRST RING SURFACE 2 PLACED BETWEEN HEEL 22B AND THE 22A TAB OF EACH RIM 33.53.63 AND THE SECOND SURFACE 24 IS EXTENDED BY RADIAL TIRE HEAD 22B. THE FIRST SURFACE 23 IS DESIGNED SO THAT IT COMES IN CONTACT WITH THE RIM SEAT 42 OF THE DESIGN RIM 30 WHEN THE TIRE 30 IS MOUNTED AND INFLATED TO A NORMAL PRESSURE. WHEN TIRE 30 IS DISASSEMBLED, THE FIRST ANNULAR SURFACE 23 FORMS A MIDDLE ANGLE (BETA) WITH THE TIRE AXLE, WHEN THE TIRES 33,53,63 ARE SEPARATELY A DISTANCE WIDE EQUAL TO THE DESIGN RIM. THE MIDDLE ANGLE (BETA) IS AT LEAST THREE DEGREES GREATER THAN THE ANGLE FORMED BETWEEN THE SEAT OF THE CORRESPONDING TIRE 42 OF THE DESIGN RIM 40 AND THE TIRE AXLE. THE SECOND SURFACE 24 IS DESIGNED SO THAT IT COMES IN CONTACT WITH THE ANNULAR BEAD PORTION 44 OF THE DESIGN RING40 WHEN THE TIRE IS MOUNTED AND INFLATED AT NORMAL PRESSURE. THE SECOND SURFACE 24A IS INCLINED WITH RESPECT TO A PLANE P PERPENDICULAR TO THE AXIS OF ROTATION, FORMING AN ANGLE (ALPHA) TO THE NEOS THREE DEGREES LESS THAN THE ANGLE FORMED BETWEEN THE EDGE OF THE ARO 44 AND PLANE P. PREFERABLY THE ANGLE (ALPHA) IS FROM 3 (DEGREES) TO 20 (DEGREES) AND BETTER EVEN FROM 3 (DEGREES) TO 15 (DEGREES) WHILE THE ANGLE (BETA) IS FROM 8 (DEGREES) TO 25 (DEGREES) AND BETTER EVEN FROM 8 (DEGREES) TO 20 (DEGREES). THE ANGULAR RELATIONSHIPS RELATED TO THE EDGE OF THE DESIGN RIM 44 ALLOW THE TIRE 33,53,63 AND THE BOTTOM SIDE WALL 21B OF TIRE 30 TO ROTATE SLIGHTLY WHEN MOUNTING IT ON DESIGN RING 40, WHICH IMPROVES THE STRENGTH CHARACTERISTICS TIRE MANAGEMENT.