Radar Trollstigen April 17, 2017 The Col Collective takes on Trollstigen, one of Norway’s most scenic and challenging road climbs. Related • Radar Col Collective: Alpe d’Huez 1 Radar Col Collective: Mont Ventoux 5 Radar This is Home – Brage Vestavik 1 Radar The Col Collective: Passo Giau • Radar Heim Bicycles 1 Radar The Col Collective: Albulapass