Good luck!! Coincidently, I've just been looking into GPS and GPS mounts on the KTM, at the moment . I used TomTom before, but I'm gonna buy a new one when I get the KTM. I'm going Garmin!
My mate has a Garmin and I had TomTom when I last rode. Last time we rode in France we would split up and meet at the end. We never got to the bottom of it but they used to disagree on routes. No difference in time to note and one may of just been riding faster. Garmin have got a good record with GPS and KTM do a GPS mount for the Garmin - so I decided to go Garmin just to make my life easier. Still unsure to which GPS is really best but it just seems easier to go Garmin....
My 530e gives all of 18miles on a full charge and due to the boot being full of batteries, the fuel tank is the size of an egg cup, £50 quid to the brim which gives me all of 350miles to a tank (including a full charge) it does go pretty well though, but best of all is the mahussive tax incentive. If i was t paying co car tax I’d have had the 530d all day, every day
