Winterlücke from Innertkirchen

Winterlücke from Innertkirchen is one of cycling's great tests — 8.5km of sustained climbing, gaining 830m from base to summit. The average gradient of 9.7% disguises ramps of 19.5% — 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. The road reaches 1,633m — high enough to feel the altitude on tired legs. Located in Bern, Switzerland.