<p>Experienced stunt riders Josh Graham and Jason McMillin took to <a class="link" rel="nofollow" target="_blank" href="https://www.facebook.com/pages/Dirty-Turtle-Offroad-Park/160915557294076" target="_blank">Dirty Turtle Offroad Park</a> to experiment with dirt tires on their stunt bikes during the park’s annual Boo Bash weekend. While they told Storyful it was a “huge challenge to learn how the bikes would react with knobby tires on a whole new terrain”, they can be seen enjoying some high-speed fun in this great recording from the event. Credit: YouTube/Dirt Hicks Videos</p>
