Tomac retained his overall NORBA title in 1989, and also won the NORBA DH Championship for the first time. In a season in which he competed at the highest level on both sides of the Atlantic, he added the German and European XC titles to his collection. In 1990, he joined Yeti Cycles' factory MTB team and the 7-11 road team, embarking on a busy program of events in Europe and the U.S. To facilitate his road racing career, Tomac based himself in Belgium, and regularly traveled between the two continents to compete in major road and mountain events. Although he failed to win any of the three individual NORBA series, he won the overall NORBA title for the third year in succession.