Use care when storing tires.
When tires are stored they should be stored in a cool, dry place away from
sources of sunlight, heat & ozone such as hot pipes & electric motors. Tires
should be stored so there is no danger of water collecting inside them. Be sure
that surfaces on which tires are stored are clean & free from grease, gasoline
or other substances which could deteriorate the rubber. Tires exposed to these
materials during storage or driving may be weakened & subject to sudden
failure. Also, be sure to allow air to circulate around all sides of the tires,
including underneath, to prevent moisture damage.
When storing tires flat (one on top of the other), stack so that tires on the
bottom retain their shape.
If storing tires outdoors, protect them with an opaque waterproof covering
& elevate them from the ground. Do not store tires on black asphalt, other
heat-absorbent surfaces, snow-covered ground or sand.