Several Yamaha-backed AMA Pro Road Racing teams are testing today at Thunderhill Raceway Park, in Willows, California.
Participating in the test are Monster Energy/Graves Yamaha Superbike riders Cameron Beaubier and Josh Hayes, Y.E.S./Monster Energy/Graves Yamaha Daytona SportBike riders J.D. Beach and Garrett Gerloff, and Meen Motorsports Daytona SportBike riders Tucker Lancaster and Jake Lewis.
Weather conditions are said to be good.
The test is scheduled to continue through Thursday.