This tank was a $28 dollar ebay auction. It's from a Yamaha Enduro 60. Came with a cap and several dents. It didn't take much to bondo out the dents. The mount you can't see is a piece of 1/8" flat steel welded to the frame straight down with a cross hole and a small metal plumbing nipple welded in the hole then trimmed to fit the width of the mounting holes on the tank. The rear is a painted piece of pvc trimmed to fit. I may built a "hook" for the back welded to the frame. I just wanted to thoughly test the durability of the front mount. It's just painted with Krylon Fusion paint for plastic. So far it's holding up to the gas really well.