The updated Roadsport tire features one of our classic, most versatile tread patterns paired with the bead to bead protection of our premium Endurant casing. This upgrade gives the tire increased speed, grip and durability, all in a lighter weight package. We also updated the rubber with a new, extra-grippy compound that provides safe and predictable handling in a variety of conditions. So, its no surprise that it has already become a Specialized employee favorite. Specialized RoadSport Bicycle Tire