Horrible ride along the E4 to the north towards Umeå. Most of the time there was no designated cycle path available, nor an alternative road. So I had to cycle on the highly frequented and sometimes frighteningly narrow E4.
At other times cycling on the E4 was not permitted and a marked alternative route was available. While that route went through picturesque countryside and over roads with very little traffic, it was quite hilly and about 30% longer than the direct route over the E4. Stopped exhausted and annoyed in Docksta after 150km.