The start of this video is in Matrei (East Tyrol), goes at the start through the small town and continues for about 6km uphill on tarmac.
Beautiful old farms and the people just at the hay harvest. The second part of the climb is on gravel and quite rough in parts. The whole video shows a really dramatically beautiful mountain panorama. Towards the end, the Großglockner is always in view (also at the very end of the video). The finish is at the Matreier Törl Haus at 2207m.
If you're up for an even longer ride with a great downhill, there is the "Matreier Törl To Adler Lounge" which directly follows this one!