Galena, IL (11/28/2012) - The Wienen Motorsports / SSi Decals / Maxxis / Yamaha / Walsh backed by Team Vollmer competing on 2013 YFZ450R's is proud to announce they will be adding new riders to their roster for the upcoming 2013 season. "I'm excited for the 2013 season, not only am I looking forward to defending my 2012 AMA ATV Pro MX National Championship but I am excited about bringing fellow Pro rider Thomas Brown underneath the Wienen Motorsports team. This season Wienen Motorsports will also be sponsoring Pro-Am rider Bryan Vollmer and Pro-Am rider/A Class rider Jordan Dummett."