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AMSOIL Monster Trucks Take Victories in Monroe and Rossburg

The AMSOIL Shock Therapy and Excaliber monster trucks recently competed in Monroe, Mich., where Chris Ryan drove Excaliber to the racing final, and Jon Zimmer and Shock Therapy took a big freestyle victory with big air, two-wheel saves and plenty of momentum. In Rossburg, Ohio, Zimmer drove Shock Therapy to the wheelie contest victory before taking the wheel of Excaliber for another freestyle victory with his trademark huge air, great momentum and high-speed donuts.