This is a very nice gravel or mountain bike climb in Austria.
There's no traffic, and it's not too steep to climb, with very nice panoramic views at the finish which is approximately 1700m above sea level. Nevertheless, be aware that the average gradient for the 9 km / 6 miles is ~ 9%!
You will have the chance to eat typical Austrian food at the Bürglhütte. Enjoy a rest!