Colle del Preit from Ponte Marmora

Colle del Preit from Ponte Marmora is one of cycling's great tests — 13.9km of sustained climbing, gaining 1,135m from base to summit. The average gradient of 8.2% disguises ramps of 18.4% — the kind of gradient that turns plans into prayers. 10 hairpins punctuate the ascent, offering brief respite in the corners before the gradient bites again. At 2,080m, the summit rises above the treeline into an exposed, often windswept landscape. Located in Piedmont, Italy.