Oetztaler Radmarathon
Timmelsjoch - title photo Crosses 4 passes -
Jaufenpass
Timmelsjoch
Kuehtai-Sattel
Brenner

Start and finish is Soelden, and it is run in late August.

Here's a link - More information

Thanks to
Martin Gallaun and Gerhard Amschl
for the information, and to
Eric Strub
for the photo of Timmelsjoch.