The present invention relates to a tire cover or casing that includes two flexible sides and a central member. The flexible sides have a width sufficient to essentially cover a sidewall of a tire, while allowing, when mounted on the tire, access to the inner opening of the tire; and a securing device for securing the side over the sidewall of the tire. The central member has sufficient length to essentially cover a tire tread; and an adjusting device for adjusting the size of the tire cover or casing to fit the tire. The present invention further includes methods for changing a flat tire, for storing a seasonal tire, and for covering tires for use in a show room or the ground. Additionally, the present invention relates to wheel assemblies and emergency roadside kits, both including the tire cover.