The race sets off from Bera to travel southward at first. A loop commences near Elogorriana, taking the riders over the Belate (11 kilometres at 5.1%) and Saldias (4.4 kilometres at 4.3%). The route returns to Bera after 107.3 kilometres and now continues to the north.
Two more loops are to follow after moving through Irún. The first is one nothing special, but the second one includes the Erlaitz climb, which also featured in last year’s Clásica de San Sebastián (Remco Evenepoel victory). The climb amounts to 7.4 kilometres at 6.4% and riders with ambition should take note of the middle section of 3.8 kilometres at 10.6%.
The riders fly down the Erlaitz in a 13.3 kilometres descent to the line in Errentería.
The first three riders on the line gain time bonuses of 10, 6 and 4 seconds, while two intermediate sprints – at kilometre 141.3 and 172.4 – come with 3, 2 and 1 seconds. That second sprint is situated inside the last 3.4 kilometres.
Tour of the Basque Country 2021 stage 4: route, profile, more
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Tour de France 2021 Route stage 16: Pas de la Case - Saint-Gaudens
Tour de France 2021 Route stage 17: Muret - Col du Portet
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