Effects of improper inflation pressure on treadwear
from Tire Business
Maintaining the proper inflation pressure in tires is the single most important thing you can do to get the most mileage out of a tire. Everybody says that, but like the weather, everybody talks about it but nobody does anything about it, or even explains exactly what happens to the tread when inflation pressure isn't maintained properly. As you know, air carries the load, so maintaining a minimum cold tire pressure is critical to the health of the casing to prevent the body ply cords in the sidewall from fatiguing and breaking. But exactly how does pressure affect the tread?
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