Yu-Gi-Oh! 5D's is set in Neo Domino City some time after the events concerning Yugi Mutou (DM) and Judai Yuki (GX). A new form of dueling, "Riding Duels", now take place on motorcycles called "D-Wheels". While regular dueling still exists, Riding Duels have become a popular form of entertainment for spectators, who watch them in specially-designed stadiums.