The mouth-watering prospect of a stellar line-up of world champions and hard-charging challengers promised a vintage year of motocross as the 1989 season opened.
WHR Motorsports is set to host its first AMA Supermoto Championship event this Saturday, Sept. 29, at the Deschutes County Fairgrounds and Expo Center in Redmond, Ore. Entitled the Yamaha Rampage in Redmond, this year’s race marks the first time the AMA Supermoto Championship has visited the Pacific Northwest and the state of Oregon.