It was not far from Gersthofen to the retreat in Leitershofen, but it was all through Augsburg. Luckily I had left as late as the hotel would let me, so I was not in the morning rush hour.
As the weather forecast was for thunderstorms I decided to not cycle all the way back form the retreat, but only to the nearest S.Bahn-station, which happened to be in Geltendorf. The ride there was very pleasant through forest to the South of Augsburg, along the Lech, and then though fileds.
About 10km from Geltendorf I could feel the steering going wobbly – I had a slow puncture in the front. I made it to Geltendorf station while only having to pump up once, but then definitely had to push back home from Ottobrunn station. But despite the numerous punctures an excellent trip!