I've wondered what the quickest of the popular mini bikes from the late sixties and early seventies were before. If you take the information given in original MBG's on testing, stock, and modified racing, and combine them, you will in fact see Hodaka powered Bonanza's at the top, with Speedway and Arctic Cat mostly 50/50 for second. You will really not find Rupp in many competitive racing statistics in any of the MBG's and why would you? Although I am missing about six issues.