In April 1923 the fire stone and rubber company began the first regular production of what?

In April 1923, the Firestone Tire and Rubber Company began the first regular production of balloon tires. These tires featured a larger volume of air, which provided a smoother ride and improved performance compared to the standard tires of the time. The introduction of balloon tires marked a significant advancement in automotive technology, contributing to the growing popularity of automobiles in the 1920s.