barely legal welding
+1y
where on the bar are you plaing on putting the bags,center, closer to axle, or closer to front mount? Truck weight will be a factor also, is this a truck or SUV? Are you going to be towing or hauling heavy?
Exp: if you are building a dually to pull car haulers you do not mount those on the bars. You can(its your truck) we just dont recomend it.
EXP: if you have a light ass toyota and you are not pulling any thing with it just driving and you mount the bag closer to the axle 1.5x.25 wall bars will hold the weight, but with the same truck anything farther from axle then center(and on center) on the bars should be gusseted(braced) up. We bend up some more tube(1") and build some cool under guessets, but you can make them from flat plate too.
Richie