I wanted to make a rack that i would be able to carry some supplys and be water prof and can be locked if need be. The rack was built useing 3/4 inch by 3/16 flat steel. I heated it to make the bends and welded in cross braceing. I used two 30 cal. ammo cans and mounted them low on the rack with 3/4 inch spacers. The alum. cover is something i added to cover the rack and act like a finder. This is the second one i have built the first was with a 50 cal. ammo can and was given to my son to use on his Electra.
