Vuelta 2015 stage 18: Nicolas Roche powers to win, Dumoulin retains lead
Stage 18 offers a hilly parcours with the 1st category climb Puerto de la Quesera in the finale. It's there Nicolas Roche leaves the break of the day and he is accompanied by Zubeldia. The Irishman outsprints Zubeldia, while Aru attacked Dumoulin…