Poured in the same THC slide urethane as the 81A Swingers, the 70mm/78A the Cadillac. Swingers are made for busting out giant slides with ease. The 78A formula provides some extra grip for confidence at higher speeds. Stone-ground to slide smoothly right away, the Swingers wear evenly down to the high-performance hub. With a center-set hub and graphics printed on both sides, these wheels can be flipped to promote more even wear. Our team says freeriding on these wheels is like skating in ï¾easy-modeï¾.