June 23rd

    June 23rd, 1924
Stuart Williams won the Junior Grand Prix at Goulburn NSW riding an AJS. He went on to ride at the Isle of Man in 1924 with a team from NSW, without success, "before leaving England to return to Australia with new found knowledge."
VmccNsw
    June 23rd, 1973

Bruno Kneubühler on a Kreidler wins the 50cc Class Dutch TT in Assen. At the end of the season nine of the top ten were riding a Kreidler. The other was on a Jamathi.
Bruno Kneubühler