Tires, Storing
Complete wheels
Tires mounted on wheels can be stored flat, stacked on upon another. The air pressure should be raised to a maximum of 3 bar.
Tires without rims
Tires without rims are best stored standing upright. If tires lie stacked upon another for longer periods of time, they will be strongly pressed together. This makes mounting more difficult because the tires do not lie on the bead seat. If the tires are stored standing vertically, it is recommended to turn them every 14 days to avoid severe flattening.