I use a Garmin Oregon 550 or a Garmin Nuvi 50..
The nuvi 50 is more a road based unit..
The Oregon has Topo maps loaded , Is great
for trail /ADV riding.. has the ability to log tracks
so yer can later down load / over lay them onto google maps..
Or draw up routes on base camp or map sorce & down load them
to the unit to follow when out in the back country..

I quess it's horses for courses in what type of GPS you get..

I removed the speedo on my TTR250 and use the Nuvi 50
powered from the batt..
I got the wire in power surplys off E-bay for about $5NZ each..

__________________
Harley Davidson..
The easyest way to turn gasoline into noise with out the side efect of horse power...