Installation Instructions, Run-Flat Tires

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NOTE:

Warm up cold tires to the minimum mounting temperature.

NOTE:

This applies also to ultra high performance tires (height-/width ration smaller/same 45% and speed rating symbol larger than/same as V).

WARNING:

The minimum mounting temperature for a tire may not be below 15° C (59° F) or above 30° C (32° F) (86° F) in the center of the tire.

For injury-free mounting, the upper sidewall and the upper bead inside must be minimum 15° C (59° F).
The internal temperature is called the core temperature.
Rubber is a poor heat conductor, and for this reason, a cold tire must exposed to a temperature controlled environment until the inner rubber layers have warmed up to at least 15° C (59° F).
The tire surface temperature during the warm-up phase is not a measure the inside temperature.
So that the cold tires warm up as quickly as possible, never stack them one on top of the other; store them separated from each other so that the warm air can "circulate" around them.
Never us a room heater or a hot air gun to warm up tires because the surface temperature will heat up very quickly to a critical temperature.
To prevent damage, only warm water or warm air (maximum 50° C (32° F) (122° F)) can be used to warm up a tire!
If cold tires (below 0° C (32° F)) are brought into a warm room (above 0° C (32° F)), a layer of ice will start to form on the tires. This layer of ice means that humidity in the warm air is condensing on the tire.
Once the layer of ice starts to melt, wipe up the water with a rag so that the warming up process will not be slowed down.

Warm-Up Time:

Using the example of a room temperature of at least 19° C (66° F) and a tire temperature of 0° C (32° F) or higher, the tires should be stored for at least two hours at least 19° C (66° F).
If the room temperature is minimum 19° C (66° F) and the tire temperature is below 0° C (32° F), then the tires should be stored for at least 2.5 hours at a minimum room temperature of 19° C (66° F).

Recommendations:

If possible, let the tires stand in the workshop for one day before mounting them.
Store the tires as high as possible on an insulated surface, pallet or something similar.
Position the tires so that they can be "surrounded" by the warm air.
Wipe off the sweat.
Never heat the tires with a room heater or a hot air gun!