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Podcast: BigMx Radio
Episode: The Science Behind Dirt Tricks with Zack Martinez
Description: Zack Martinez knows Sprockets and Rotors. Dirt Tricks makes some of the toughest products for the toughest sport in the worlds. Listen to this Podcast to Win a custom engraved Rear Sprocket! http://dirttricks.com/ Check out Dirt Tricks and you’ll find a best sprocket than you have on the back of your bike. Â