To all you brave Garmin ad-hoc explorers that now and then need a stress free ride: It is possible to plan a route from your desktop, load it on Garmin and ride the damn thing.
Using OSM cycle map on your desktop will reveal what kind of road you are planning to ride on.
Ridewithgps.com is a brilliant site for this kind of thing.
That's all well and good until you
1) didn't sit down the night before to plan your ride
2) took a detour off your planned route for whatever reason
3) your Garmin deleted or in some other way fucked your GPX file upload
To all you brave Garmin ad-hoc explorers that now and then need a stress free ride: It is possible to plan a route from your desktop, load it on Garmin and ride the damn thing.
Using OSM cycle map on your desktop will reveal what kind of road you are planning to ride on.
Ridewithgps.com is a brilliant site for this kind of thing.