In Husby-Sjutolft parish, west of Hjälstaviken, there are plenty of rune stones and other sights to see, not least Ekolsund Castle with the large park. Add winding small roads, and you will understand that this is a nice area to make a bike excursion in! I the Castle Café all tired cyclists can get a moment of rest and re-energize.
The local history society made in 2007 a cycling map with information about the sights that you can download as PDF.