I have a zumo 220 with the original garmin kit
You can see some pictures on this link if they do now show directly
http://www.tenere.dk/forumnew/forum_...ID=71856#71856
Original screen and Garmin Ram Mount - i've cut it a bit shorter on the lower end so it don't touch the instruments.
Higher screen and scottoiler fitted below:
Link with better picture of the ram mount:
http://www.expressmounts.com/garmin-...-assembly.html
It is also supposed to fit the 550.
My setup is pretty stable for tarmac and gravel but would probably not last long in a rally ....