I wouldn't recommend 60CSx
These are handheld units, designed for walking. I see it has an optional AC adapter (maybe even comes with unit), but you want a unit you can plug into a 12v cigarette type adapter or hard wired to your bike. Make sure it has this capability, otherwise, what happens after like 8 hours of use and the internal battery dies and you've got 2 hours more to go to the next AC plug.
I may be wrong on this, didn't look at the specifics too much.
Check out something like the 276C.
Chiang Mai, Thailand