After some time of thinking I got my GARMIN ForeRunner 205 – a GPS based training device for walking, hiking and biking with support for navigation and route tracking.
The first test seems promising, a short track around Ilmenau looks like this :
A little part of the route is missing and right now I´m not quite sure if I did something wrong or the device did. But I´ll find out in the future.
What really sucks is the GARMIN Training Center Software, totally unprofessional designed (installing in a non-selectable path – C:\Garmin, adding a service without asking, only worked after downloading the newest version from the website).
But the 3D Route Builder – http://www.HybridGeoTools.com really helped me through – and the basic version is free for personal use.
So expect a very cool bike trail in a few days (and some pics of the device).