From the manufacturer's official website:

The Roller Tire.

With a modern roller and the UltraSport Hometrainer in the house, winter can set in when it wants to.

Thanks to its special cold-running compound, the UltraSport Hometrainer doesn´t experience the heat buildup of a road tire, nor does it suffer the tread separation that the road tire is prone to under the special loads occurring when in cycling and braking on the roller´s revolving drums.

The UltraSport Hometrainer has been designed explicity for rollers and is not suitable for on road use.

Max Pressure: 120 PSI

For more information, please visit this product's webpage.