41. Radial tires were also a new option, and offered longer tread life and better road manners.42. The purpose of these tests is to develop a Winston Cup radial tire specifically for TIR. 43. A British-French working group reported encouraging results last month on tests of the new radial tire . 44. The radial tire option was discontinued after 1968. 45. Of course, this might have been because the tires were bias-ply, not radial tires , Williams said. 46. The 1989 First Union 400 was the first NASCAR Cup Series race for Goodyear radial tires . 47. Goodyear arrived at the Indianapolis Motor Speedway for the first time with a new radial tire . 48. Sunroof and steel belted radial tires were standard. 49. An Anglo-French working group reported last month that tests of the new radial tire have been encouraging. 50. The first Michelin X radial tire for cars was developed in 1946 by Michelin researcher Marius Mignol.
