L'Impériale Cyclosport begins in Laffrey, Isère, France. This road-cycling event takes place in mid-September, focusing on mountain riding. Participants can select from three distances: 50 km, 93 km, or the 150 km Granfondo. A Mediofondo option of approximately 95 km is also noted.
The course leads participants through climbs near Laffrey, crossing Isère forests and natural landscapes, including lakes, valleys, and mountain vistas. The climbing, making the longer routes suitable for those seeking a demanding late-season test. L'Impériale also functions as the concluding event of the Cyclo d'Isère challenge, following La Thierry-Claveyrolat and La Grenobloise, adding importance for competitors aiming for overall rankings.