If you want to keep water out you'll have to do more than check welds. The bars have holes drilled in the on the inside of the bar that comes closest to the side panel and on the bottom. I assume this is for lighting; at least that's what I'm going to use them for. I plan on running wire through them and putting small red LED bulbs in the holes.
Retired USAF, IYAAYAS!
2008 V-Star 1100 Custom Bobber project
2011 Crimson XR with Forged Highway Bars / Hard Bags / Passenger Backrest, Ness parts including Smooth Layback Plate Frame/Mount / Rad 3 Mirror / deep cut grips / drivers floorboards /shifter peg / brake peg / passenger pegs. Witchdoctor black rack, Lloydz filter / timing wheel / VFC III, 7Jurock windshield, Drag Specialties seat.