Vorpal wrote:syklist wrote: ... and local trains to Hirtshals then take the Colorline boat to either Kristansand (start of the Setesdal route) or Larvik (start of the Numedal route, which joins up nicely with the Rallarvegen) or the Fjordline boat to Bergen.
There is a fast ferry (4 hours) from Hirtshals to Larvik, and it is quite reasonably priced (£50 ish) if you can be a little flexible about time and day.
I'll second the suggestion of the Numedal route to Rallarvegen, though there is also at least one reasonable alternative to Numedal, mostly on secondary roads ('B' road equivalents).
I have not checked all the ferry routes on this route suggestion so the route might not be work. Fly into Sandefjord (Oslo Torp) fly out of Trondheim. Follow the Numedalruta to Geilo then cycle to Haugastøl and take the Rallarvegen.
EditBoat to Leikanger is running in 2015 Then take the Rallarvegen down to Flåm boat to Leikanger (if it still goes) then cycle west to Hella. Take the ferry to Dragsvik.
OR
Take the Rallarvegen to Myrdal, train from Myrdal to Upsete and then cycle down to Voss. From Voss follow the Rv 13 over Vikafjellet to Vangsnes and the ferry to Dragsvik. Dragsvik campsite (assuming it is still there) has a some tent pitches with a view over Balestrand.
After Dragsvik follow the Rv 13 over Gaularfjellet to Førde and Naustdal then over a minor road towards Florø. This will only work if an old tunnel we went through in 2008 is still open. Otherwise you might have to cart your bike and bags over a hill. The alternative main road tunnel is closed to cyclists so you would need to take a bus or find an alternative route if the old tunnel is no longer usable. From Florø take the ferry to Smørhamn and then follow National Cycle Route 1 the Coastal Route (overview maps are available) all the way to Trondheim. Fly back from Trondheim airport (careful you take the correct cycle route to the airport as the E6 is closed to cyclists east of Trondheim).
If you have the time when you get to Brattvåg (before Mølde) take the ferry to Ona and spend a night there (assuming the ferries still run).
This would be short of the stated 1100 miles I think but the route takes in a few major climbs plus plenty of minor ones. So enough for you to go at in your four weeks.
One more thing,the Rallarvegen has a short open season sometimes from mid-June to mid-September. Sometimes shorter.