I want to see how the rear triangle is constructed. Some of those early fat bikes had some weird contortions to get a chain line. I hope the wheel and frame geometry of these walmart bikes is close enough to these new aftermarket frames so the parts can be swapped as they are. But if not the price for the parts is still good, and will be great for custom projects. choppersus can probably supply wide hubs if these bikes don't come with them. I'm tempted to order one for the parts, even if they do need tweaking.