anything by tyrolia, next years deadbolts, head, and i forget the other company that they make them for. They are indestructible (except for brakes), the mojo's or anything under the head name has the pivot heel and diagnol toe piece, i have had them for 2 years now and they have taken hell, plus the pivot heel saves ur knees cuz u twist out when u land wrong...personal experience from tryin to spin to win off rails.