Yamaha Racing’s Chad Wienen Wins Fourth Straight AMA Racing Title Aboard YFZ450R
August 20, 2015
Wienen and Brown Again Help Yamaha Capture Coveted Manufacturers Cup CYPRESS, Calif. – August 8, 2015 – Yamaha Racing’s Chad Wienen once again defended his title at the AMA Pro ATV MX Series Championship with his fourth consecutive title, becoming only the second person in ATV MX history to accomplish this feat, and the third in ATV MX history to be named a four-time champion. Yamaha Racing’s Thomas Brown
