The Maxxis DHF Super Tacky Tyre is made with a 2-ply DH casing with butyl-protected sidewalls. Maxxis DHF Super Tacky Tyre Features The Standard. Often imitated, never duplicated Directional, ramped knob design - front or rear 2-ply DH casings with butyl-protected sidewalls The Minion DHF is the standard by which all other downhill tyres are measured The DHF incorporates ramped knobs for low rolling resistance and channel-cut knobs to increase gripping edges, giving straight-line control and precise cornering