FoolishSageBest Answer 8 years ago ReplyI didn't know what a dirtsurfer was so I googled around a bit. It doesn't seem like a very complicated machine. If you look through a few sites I am sure that designing your own would be relatively simple. Between a pipe bender, a welding kit and some pieces of a bicycle you should be able to make a reasonable facsimile. This would also make it more unique :)Sorry I can't be of much help though.