Premium Trailer Tire[Premium ST Tire] – The Rovelo Exhaul ST is a premium ST (Special Trailer) tire designed specifically for towed trailer applications, offering exceptional performance and reliability.The Rovelo Exhaul ST is designed for all towed trailer applications. A key feature of the Exhaul ST is its ability to provide superior towing stability. In addition to increased strength and enhanced durability, the construction of Exhaul ST delivers low rolling resistance over the life of the tire.ST175/80R13 Rovelo Exhaul ST 91L[Stable and Quiet Ride] – The tread pattern is designed to distribute weight evenly, resulting in a stable and quiet ride for a more comfortable towing experience.[Superior Towing Stability] – A key feature of the Exhaul ST is its ability to provide superior towing stability, ensuring safe and controlled towing of trailers.Rovelo Exhaul ST[Increased Strength and Durability] – The tire is constructed with increased strength and enhanced durability, making it capable of withstanding the demands of towing.[Low Rolling Resistance] – The rubber compound is engineered to provide low rolling resistance over the life of the tire, promoting fuel efficiency and extending tire longevity.