The Racing Ralph everything is designed for speed, and because of its race bred roots puncture protection is minimal SGRND - Super Ground, Snake Skin material running from bead to bead and three full carcass layers, the sweet spot between puncture protection and light weight in the Super lineup ASPD _ Addix Speed compound features improved rolling resistance while also increasing durability and and overall grip SnakeSkin - A light and flexible carcass makes the tire highly resistant to scrubbing *Please note that EBike rated tires also can be used with non-Ebikes and are generally more durable than standard tires