Firestone's FT492 is a commercial trailer tire designed for long-haul and specialized service. The FT492 is SmartWay certified, with a low-rolling-resistance tread compound that helps cut fuel costs. Wide footprint helps to distribute weight evenly for a longer tread life Cross-rib sipes slice through standing water to fight hydroplaning Defense groove structure creates uniform pressure at the shoulder to minimize edge wear Stress relief sipes fight irregular wear along main ribs by absorbing rib edge stresses 14-ply construction enhances strength and durability for a longer tread life 11/32" tread depth 75 mph highway speed rating
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