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 won'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 cycling and braking on the revolving drums of the roller. The UltraSport Hometrainer has been designed explicitly for trainers and rollers and is not suitable for on road use.