Jim Beaver and the Down & Dirty Radio Show Powered By Polaris RZR have this weekend's overall Parker 425 winner Justin Matney on air. We'll also be doing a tribute to the late great Dave Mirra and re-airing part of his last interview on the show. Jenn Hellstrom is calling in to report on King of the Hammers, and Ami Houde is holding down the supercross coverage and of course our Fantasy Supercross picks for Round 6 as well as all of the latest from the world of off-road and action motorsports! #GameOn
