Olten Aarau Brugg

N'baumen to Oftringen via Mellingen on route 34

Then Olten, Aarau and Brugg following more or less the Aare river.

At the end some stupid loops in N'baumen just to hit the 100 km. Stupid GPS showed 100.3 km on the diplay but once imported in the PC shows only 98 km >:(

Between Unterentfelden and Oberentfelden there's a short unpaved part (less than 200 m), but very flat and with very fine gravel, perfectly doable with a road bike