http://24hcyclotour.com/pruebas/las24hcyclotour   Ultra-distance Race 24H CYCLOTOUR is one of the hardest ultra-distance races in Spain for weather, length and achievements got for riders in previous editions. The objective is make the maximum kilometers riding in the track of the circuit during 24 hours. It isn't mandatory ride all time, you can stop and rest all times you need or want,