High-speed tire

Claim 1

A PHEUMATIC TIRE HAVING A TREAD, AN UNDERTREAD AND SIDEWALLS OF A VULCANIZED RUBBER STOCK, FOUR BODY PILES OF A CORD FABRIC OF A MOISTURE RESISTANT MATERIAL, A BREAKER PLY OF CORD FABRIC OF A MOISTURE RESISTANT MATERIAL FORMING THE OUTERMOST REINFORCING PLY IN THE CROWN REGION OF THE TIRE, SAID MATERIALS BEING SELECTED FROM THE GROUP INCLUDING LINEAR POLYAMIDES AND LINEAR POLYMERIC ETHYLENE TEREPHTHALATES, AND SPACED ANNULAR BEAD WIRE BUNDLES TO WHICH THE BODY PILES ARE ANCHORED. SAID TREAD HAVING A TREAD RADIUS OF BETWEEN 100 AND 200% OF THE TIRE SECTION WHEN THE TIRE IS MOUNTED ON A RIM AND INFLATED, THE OVERALL THICKNESS OF THE TREAD AND UNDERTREAD AT THE CROWN OF THE TIRE BEING FROM BETWEEN 33 TO .50 INCH AND THE UNDERTREAD BEING OF A MAXIMUM THICKNESS AT THE CROWN OF THE TIRE OF NOT GREATER THAN 070 INCH AND A MINIMUM THICKNESS SUFFICIENT TO COMPLETELY COVER THE BREAKER PLY, THE TREAD HAVING ANTISKID GROOVES FORMED IN THE SURFACE THEREOF, SAID GROOVES HAVING A MINIMUM DEPTH OF .30 INCH, THE INDIVIDUAL CORDS OF THE CORD FABRIC OF THE BODY PLIES AND THE BREAKER HAVING A STRETCH AT 10 POUNDS LOAD OF NOT GREATER THAN 10%, THE CORDS OF THE BODY PLIES AND THE BREAKER EXTENDING AT A CROWN ANGLE OF BETWEEN 25* AND 1* WHEN THE TIRE IS UNINFIATED, THE SPACE BETWEEN ONE ADCENT CORDS OF THE BREAKER PLY BEING BETWEEN ONE AND THREE TIMES THE WIDTH OF THE INDIVIDUAL CORDS THEREOF, THE HEIGHT OF SAID TIRE FROM THE BEADS THEREOF TO THE USES OF THE ANTI-SKID GROOVES BEING NOT LESS THAN THE RE SECTION WHEN THE TIRE IS UNINFLATED.