Cycle News Magazine #2: Houston Supercross, Adelanto Big 6 GP, Triumph Tiger First Test Two rounds into the 2018 Monster Energy AMA Supercross Series and no one could have predicted this! We have full coverage of the Houston Supercross. We also have full coverage from the California desert and the Big 6 WCGP Championship Adelanto Grand Prix, where Trevor Stewart topped all comers, including GNCC Champion Kailub Russell and defending champ Zach Bell.