Thanks - it's working as a track
How can I convert a track to a route? Or do I even need to?
Wouldn't bother, stick with a track for something you've downloaded.
If you did want a track I'd create a new route in bikely sticking one routepoint per routesheet instruction (i.e. where you need to be told to do something other than go straight on) with each point labeled with the instruction (in just 6 characters).
Download the subsequent gpx file from bikely (it'll download as a track), then:-
Edit it in Notepad (or any other text editor).
1) Delete everything from the first <trk> tag to the end of the file.
2) Add a newline and "<rte><name>FOO</name>" before the first <wpt> tag (just after the opening <gpx> tag)
3) Search/replace every occurrence of "wpt" to "rtept" (without the quotes).
4) Add "</rte></gpx>" to the end of the file.
5) Save and upload via gpsbabel as a route.
Change "FOO" to be whatever you want the track to be called. 10 character limit applies I think.