Many thanks to dannyeslick for sharing his photo with Keanu Reeves on webtagram and to @keanulatino for tweeting the link. The photo is here.
Note: Danny Eslick is an AMA Pro bike rider. His bio is here.
Update: They appear to be having Pros put the bikes through their paces at Willow Springs Race Track. Arch Motorcycle tweeted last night that they arrived early at Willow SPrings and that Danny Eslick was in the house. Many thanks to misterryanboyd who shared a photo of the riders on the bikes at Willow Springs on webstagram here.