Can Firestone agricultural tires improve my tractor performance? Yes! In general farm use, Firestone’s 23° tread bar angle and long bar/long bar tread design help performance in many ways. Our 23° bar angle delivers traction, 15 percent better than a 45° bar angle. Our long bar/long bar tread design delivers even wear, excellent traction and a smooth ride throughout the life of the tire. Always be sure to properly match tire inflation to your load to get the most out of your Firestone farm tires. << Back to Questions & Answers Can’t find the answer you want? Please contact us. Copyright © 2009 Bridgestone Americas Tire Operations, LLC Privacy Policy / Legal Notice / Search This Site PRODUCTS: Tire Finder Tire Catalog (PDF) Tire Catalog Product Size Listing (PDF) Questions & Answers Warranty Information Technical Bulletins Testimonials Tubes