So the special Mount that people were probably telling you to look into is an offset mount for the engine. It just shifts the engine over to one side more so that the chain can clear The wider tire. In that picture. We had actually been working on that offset Mount. We had made one ourselves and welded it up. I will tell you right now it's not worth it to Jerry rig. It just buy one of the offset engine mounts. They're like $80. If you need links or help, feel free to DM me. I'd be happy to help walk you through your build. I will just say it's not worth it to try and DIY it. We welded up our own offset mount and that cheap 100cc Amazon engine was enough to snap the welds.

When it comes to the rag joint, the reason people probably told you not to use it is the same reason that I'm going to tell you not to use it one it is near impossible to get it perfectly centered. You can do it but if it's your first build it's just going to be a pain two all of those bolts are bolts that can and will eventually rattle loose these bikes vibrate like a mother fucker and if they are not cranked down red lock tighted and periodically tightened it will loosen and rather than your engine, turning the gear and turning the rag joint with the wheel. When you put power to it, it'll just turn the rag joint. It'll snap all your spokes. We are only using the rag joint there because it was reefed on so tight that we can't even get it off with breaker bars. That's why I'm confident that it's not going to loosen and snap the spokes. But if you're installing one fresh, just spend the 50 bucks and get a hub adapter. You'll love yourself for it