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For the tire lugs to bite into the track they have to stand perpendicular & not fold or roll back. The corner of the tread has to dig in. If the tire is under inflated or the lugs are tall as in new tires or rice tires they bend back on hard tracks. In the field in loose dirt is another story. Worn or cut tires win at the pulling track. The proper dry radials on your 4020 will out pull the current loaded tires while burning less fuel & increase crop yields with less soil compaction. Below is a copy of a wee bit of the Firestone site info Good - Radial 23°
Premium features - economy price! R-1 Tread Depth 23° long bar/ long bar design - Even wear, long life, smooth ride, excellent traction Open-center tread bars - Aids cleaning & traction Bead & rim flange protector - Keeps stubble out, minimizes equipment downtime Better -Radial All Traction 23°
Premium tire and market leader! R-1 Tread Depth 23° long bar/ long bar design - Even wear, long life, smooth ride, excellent traction Open-center tread bars - Aids cleaning & traction Bead & rim flange protector - Keeps stubble out, minimizes equipment downtime Anti-vibration Tread Design Heavier Duty Lug Design Best - Radial DT 23°
Excellent for high HP tractors! R-1 Tread Depth 23° long bar/ long bar design - Even wear, long life, smooth ride, excellent traction Open-center tread bars - Aids cleaning & traction Bead & rim flange protector - Keeps stubble out, minimizes equipment downtime Anti-vibration Tread Design Heavier Duty Lug Design R-1W Premium tread depth for excellent wear Good, Better, Best ... What's Right for You? Before you invest in a tire, take a close look at your operation and compare your needs to the performance of different Firestone models. For example, depending on your location, how a tire performs in loose soil may be most important to you. Or you may be more concerned about their wearability. We've rated our Good/Radial 23, Better/RAT 23 and Best/DTR 23 tire models for performance in several key areas to help you make the decision that's right for you. A higher or lower index rating shows what you can expect from your purchase. For more information about Firestone tire performance, talk to your Certified Firestone Dealer.
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