Our 2008 Winnebago Sightseer came with a mounted 245/70 R 19.5 spare that is carried in a compartment beneath our bed accessed from a door on the drivers side above the generator. I recently had a flat at home. Called Good Sam and had roadside service in less than an hour. The tech removed my flat and leak checked to find bad seal at the rim. He removed the tire from the rim with two tire irons, cleaned the rim remounted the tire, checked for leaks and then put it back on the Winnebago. Spare tire never left the compartment. I may not be so lucky next time so I will keep the spare. Tech was from Bretton tire service in Brockton, MA