650cc motorcycle input

[LD Hack]

I'm looking to add a "beater" bike, for rough road travel, suppliment my high mileage 1150RT.... researching KLR650, WeeStrom DL650 Suzuki, and BMW F650GS. I like the BMW high output alternator but worried about the buffeting issues of the windscreen. Seems it's not solveable. The F650 is my preference, if the buffeting issue can be solved. Both the KLR and Wee have low alternator output (I like heated gear and good supplimental lighting). The Wee seems very road worthy on highway compared to the KLR - less buzzy. It also has cast wheels, meaning no tubes, which is a huge plus in my preference. Both the KLR and Wee seem rock solid and reliable, yes? The KLR seems to require a lot of upgrading (frame bolts, Doohicky, fork brace...)

Used is my market, and the KLR is often lowest priced, with the Wee and then the F650 in increasing price order. Difference of $2k to $3k between the three is not a huge issue, if the defects of each bike can be overcome. Simply looking here for more "on the ground" input, to suppliment my other information resources.

My riding goals are more remote riding, although I take my RT on dirt a lot. Looking for travel in MX and farther south, and on roads where knobbie tires are really needed, along with farther south "highway" travel. Will any of these machines be better in terms of South America/Central America parts availability?