Rushing downhill by mountain bike for 10,000 meters in one day and never on the same trail - that's what the Bahnentour Davos stands for. Remo Thommen and Damian Ineichen were convinced that this is also possible in Valais. Their 100-kilometre trail journey took them from the Illhorn to Zermatt, not quite efficiently, but on the best trails. Did they still manage the 10'000?