Howler (formerly OTR-S): The Howler is one of our first true M/T tread designs.  Designed with harsh off-road conditions in mind, the Howler features a unique center lug pattern that gets in and digs in tough mud and clay conditions.  As the name suggest the Howler is not for the faint of heart as they do howl on the road.  Alternating shoulder scallops help grip and provide traction while steering through mud, loose rocks and ruts with excellent self-cleaning capabilities.  The Howler is also pinned to accept studs (not provided by TreadWright).