A wild video (and turn up the volume) of Giuliano Calore descending the 48 switchbacks of the Stelvio from the summit to Prato allo Stelvio in 1986. Note how he uses his heel. During the video he comments that he hit speeds in excess of 60-65 km/h.
Calore is well known for his exploits which include cycling up the Stelvio handsfree. More about Calore here.
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