Thanks for that information!! i never knew that you could do that? how cool! oh and yes this is a cool vehicle for sure and is for sure 100% a custom build, I haven't seen anything like it after a lot of net searching, it is entirely possible for someone with the right facilities to make something like this though, the trike underneath maybe a stock rolling chasis. This one is very small front to back, it looks like it has been made so the rider sits up with his legs bent, unless he is very small?
The video is only camera phone so didn't get the plate details, I may pop up there again one morning but don't want to bother the guy too much, I am sure he gets enough of that riding that thing anyway, would be cool to have a go in it though!