The journal "Sustainability" publishes on line the scientific article entitled ““Not as safe as I believed”: Differences in perceived and self-reported cycling behavior between riders and non-riders” in its volume 13, February 2021, written by Sergio Useche, Javier Gené-Morales, Félix Siebert, Francisco Alonso and Luis Montoro. This article is part of the Special Issue Sustainable and Safe Two-Wheel Mobility.