Lapierre overvolt cross 400 e bikewith versatile comfortable equipment the lapierre overvolt cross 400 e bike is ideal for riding in town and on countryside paths with or without electric assistance its the perfect companion for all of your daily travels powered by a yamaha motor that provides power assistance up to 25kmh the overvolt cross is the electrically assisted all terrain bike that can get you over the bumpiest and steepest rides its also equipped with a suspension fork and sus