Video: Racer X supercross preview show – who’s next?

Racer X begin their series of supercross preview shows by looking at the contenders for the 2018 supercross title now that 2017 champ, Ryan Dungey, has retired.
Will it be Marvin Musquin, Eli Tomac, Ken Roczen or even Jason Anderson that lifts the crown, or maybe even a surprise champion!