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,
