The ST908 is an open-shoulder drive tire that has a superb reputation among fleets. Its 26/32” tread depth is designed for longer life and year round service. It features a continuous center rib which provides long life and highway stability. Its shoulder lugs are designed to bite for great traction on soft surfaces. This tire state of the art tire features a four steel belt casing construction which resists punctures, increased retread cycles and increases vehicle stability.