I've just been looking at the gpx files - I don't have the maps of the areas concerned.
A few things stick out as being problematic.
Route0.gpx has thousands of route points - but these are all shaping points except the first and last, which are set as Via Points. This contradicts what Larry has just said about them all being Vias - but in the gpx text there are only two of the points that are flagged as Via. When imported into Basecamp, the column is labelled (Via Points), but that is a hang over from Mapsource, which was never corrected.
The shaping points are all plotted extremely closely together - ie 7,148 points over 755 miles - 9 shaping points per mile - which is rather excessive.
The header to the gpx file says
gpx creator="Garmin Desktop App" - This how BAsecamp flags the gpx file when it attempts to convert a track to a Route. All it does is change every track point into a shaping point - except the start and finish which are via points.
It looks as though that is what has been done with this route.
You have two options worth considering.
1) Load the track and just show that on the Z590 screen. You can change the colour and the width to make it easier to see. This will not give you any instructions.
2) Build a new route in Basecamp using the track as a guide. In Basecamp, take your original track, or create a track from your route, and show it on the Basecamp screen in a colour of your choosing. Then Place a route point (flag waypoint) at the start and a route point at the end - placed precisely by zooming in on the map. (Actually - better to place the first point a little further dwon the road from the start.) Calculate the route.
Then locate a few identifiable places on the track that you need the route to pass through. Use the
insert tool to drag the route to each point that you have identified - the track will show you where the original route goes. After each new point is added, the magenta route will recalculate to get closer to the track that you have on the screen. The idea is to have enough route points to make Basecamp calculate a route that uses the same roads as the track. If the route is going over a mountain pass, then usually a point that is a HAlf way up one side and half way down the other is enough to force the route to follow the roads that you want.
Double click the route and in the dialogue box that opens, select the Route Options tab. Select the Cutomize Route Options button rather than the one that assigns a profile. Select the vehicle to be motorcycle, route preference to faster time and untick every other check box. Never mind about the speeds. Close the dialogue box.
This is important as it is now WInter. You are probably planning a route for Summer. But Basecamp knows that it is winter, and one of the options is to avoid seasonal closures - if Basecamp is preventing you from going over a summit, this is probably the reason.
IF there are a lot of alternative roads around, then you will need more points. If not, you will need less. Most of my routes contain 3-4 Via points and I very rarely need to use more than 3 shaping points between via points.
The idea is to end up with a route on Basecamp that completely covers the track of the original.
In Basecamp, make sure that the map you are Using is the same as the map that you have on the Zumo, and recalculate the route.
Go to Edit / Options / Device Transfer and untick any boxes that are checked. Then select Apply to all devices.
You will probably want some of the route points to be set as Via Points. Usually places that you would want to stop. Set these points to be alerting.
You may want to name the route points to something that you recognise.
On the Zumo, set the navigation to Faster time, no avoidances.
Transfer the route and the track to the Zumo.
You can show the route and the track on the Zumo at the same time. If the Zumo decides that it wants to calculate a different route (IT may do, but the 590 is pretty good at calculating the same route that Basecamp did) - then you have the track which will show you where the original route went.
I have probably given you more questions than answers - but you can ask about specific things later. Try the above with a few points, send it to your Zumo to convince yourself that you have a route that works.
As a newbie to the Zumo 590, you might find this document handy. Download the pdf.
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