Featured In the September 2023 Issue of Roadracing World:

        In England during the mid-to-late 1960s I was able to experience the Grand Prix atmosphere without ever going to a GP! There were non-championship races like the Post TT and the Race Of The Year at my local track, Mallory Park, and factory riders with their exotic bikes would show up and compete for money and fame.

            “Historic Racebike Illustrations: 1968 Yamaha RA31,” by Mick Ofield

            With few technical restrictions, the war in the 125cc class had escalated to the point of Honda fielding the RC149 five-cylinder 8-speed four-stroke that revved to 20,000 rpm! Yamaha responded with the RA31 four cylinder, 9-speed two-stroke that revved to 17,500 rpm. Compare these specifications to today’s GP classes of spec this and spec that, and endless technical and access restrictions and you can see why 1960s road racing was called the Golden Era! Read the details of the jewel-like Yamaha in the latest issue of Roadracing World!

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