The winningest rider in AMA Daytona SportBike history, Martin Cardenas, joins us for this edition of Throttle Response from Road America. The M4 Suzuki pilot talks about racing 600s, his path to AMA success, and some of the difficulties he encountered along the way. Be sure to check out other Roadracing World feature videos. Video provided by ~http://www.OnTheThrottle.tv~