That's what I was afraid of. It is why I asked about mounting points for pannier racks, which could mount roto-pax fuel containers. Your response indicates that welding on frame attachment points is necessary - which can be done, but it's a hassle for a non-ideal (roto-pax) solution. Still, the small Duke product line is still evolving. If KTM gets enough requests, perhaps they will step up.
1990 Honda NT-650 Hawk-GT
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indeed, it's the only thing that ever has. - Margaret Mead