They're all the creation of one man, Tom Wright, a builder in the outskirts of  San Diego  who figured the leftovers of the Long Beach Pike amusement park needed a more dignified end than the trash heap. They were originally powered by Harley motors but they rattled like hell and Tom replaces them with Honda or  Kawasaki 750's and a couple have been measured as capable of 160 MPH, which is terrifyingly fast in machines with such a short wheelbase.

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Via Lynn...Thanks