Medium difficulty road bike route to Solothurn

Starting from Aarau, the route mostly follows the Aare directly to Olten and further through the Gäu to Oensingen and Balsthal. Then there is a slight ascent towards the upper Hauenstein. At Langenbruck, you branch off and reach Hägendorf via Bärenwil and through the Tüfelsschlucht. For the return, the path leads from Olten north of the Aare along a flat route back to Aarau.