Originally Posted by 2door
Welcome to the forum.
You'll get more replys but let me be the first to tell you that he engine you linked to is water cooled. It will require a radiator.
Good luck with your project.
Yeah, I saw that they were also selling the radiator separately. But there's a 50CC liquid cooled engine and the seller doesn't mention anything about a radiator. I think this is a KTM replacer engine. What is the difference?