In late 2008, inspired by Michael Phelps, he decided to take up the double canoe discipline (C2) together with Denis Gargaud Chanut, while continuing to race in single kayak (K1) with the ambition to appear in both categories at the 2012 Summer Olympics. Lefèvre failed to medal at the 2009 World Championships in La Seu d'Urgell in either category though. The extreme fatigue he felt after the races made him doubt his project.