For roadies living in Switzerland the Grimsel, Furka, Susten, Gotthard and Nufenen is a "must". For those living outside Swiss it's "should". Just like "Spring classics" for pro riders, you must do it at least once a year if you really love riding in the mountains.
For me, one of the most beautiful passes. I ride them several times a year and never enough.
This time we went to ride Grimsel, Furka and Susten pass with Guy at the end of July. Perfect check before Alpenbrevet!