The Krawler T/A KX (KX is for Key feature: eXtreme traction) is BFGoodrich's Off-Road Maximum Traction tire for off-road enthusiasts who participate in the extreme sport of rock crawling to challenge their driving skills and the performance of their vehicles. This purpose-built rock crawling tire was developed through participation in competition as BFGoodrich worked directly with rock crawling enthusiasts.The Krawler T/A KX features a soft tread compound based on BFGoodrich's years of off-road experience molded into an extra deep tread design with a tread pattern that combines deep, aggressive independent blocks with solid sidewall lugs. The tire's internal structure is built like some of BFGoodrich's off-road racing tires featuring twin steel belts and four nylon sidewall plies. A rim protector rounds out the package by enhancing wheel and tire protection, especially in aired-down off-road situations.While Off-Road Maximum Traction tires, which are often called mud tires, are branded with the M+S symbol and able to churn through deep snow, their typical oversize applications and the absence of snow-biting sipes in their large smooth lugs can challenge their on-road wintertime traction on packed snow and icy surfaces.