Roczen signed with the Red Bull Teka KTM Factory Team in January 2011. Shortly after he grabbed plenty of attention riding AMA Supercross Lites in the West Coast series in the USA. Ken, on a fast learning curve in the highly competitive series even secured his first SX podium towards the end of the season. He even had a couple of impressive outings on the KTM 350 SX-F in the open class. A favorite throughout the world championship season, Roczen started strongly, then overcame a mid season lapse to settle down to a string of unassailable victories in the second half that allowed him to put his stamp firmly on the title. The only other rider to challenge him, especially on sand tracks, was his KTM teammate Jeffrey Herlings and the two set about making the season a two-way competition.