IDEAL PLAYING SURFACE: Outdoor Surfaces, Asphalt, Street, Driveways, Rough Concrete, Sidewalk, Blacktop WEIGHT GUIDELINES: Recommended for players 175 lbs and below. The Labeda Asphalt wheel is an excellent option for the outdoor skating experience. Durability & performance of this wheel will allow a player to skate at a high level. Hi-Lo refers to a wheel setup on inline skates where the back wheels are larger than the front ones, providing better maneuverability and speed.