NEW: The 2022 route will bring you to the lake Geneva and Walensee.
about 1350km / 27,640m vertical climbing
Mostly paved roads, some gravel sections may be possible. Roads with no or not much traffic and cycling routes. 28mm tyres should bring you to the finish without problems.
Subject to change:
Nufenenpass (2478m), Furkapass (2429m), Sustenpass (2260m), Grosse Scheidegg (1962m), Col du Pillon (1546m), Mittelberg (1632m), Chasseral (1607m), Kunkelspass (1357m), Lenzerheide (1550m), Albulapass (2315m), Bernina Pass (2328m). Splügen Pass (2114m), San Bernardino Pass (2026m)