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1914 Jefferson at Mecum Las Vegas 2026

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  • 1914 Jefferson at Mecum Las Vegas 2026

    Can anyone provide information on the Jefferson up for auction? Mecum as usual provides little information on their auction vehicles. Thank You.

  • #2
    I don't believe there are any original parts on that bike. The motor is actually a Mack Motor. All Jefferson motorcycles had Waverley motors. I've been researching these motorcycles for 35 years. Mack Motor cylinders are bolted to the cases by a flange on the base of the cylinder. Waverley Motor cylinders are bolted to the cases by long bolts attached at the head of the cylinders. I'll try attaMack Airplane Motor.jpg ching some original artwork from Perry Mack personal collection.
    1910 waverley motor artwork.jpg Mack motor original artwork.jpg
    The v-twin motor photo above was taken 30'sh years ago by me at one of the founders of S&S Cycles home just down from the factory in Viola, Wi. This motor had the crankshaft protruding from both sides of the cases. The Mack Motor was a propriety motor that could be used for anything depending on it's design. Many were made for cycle cars in 1913/14.

    Universal Macinery Motor.2.jpg



    Hope this helps. 1913 Jefferson Fantasy bike with original tanks and motor.jpeg

    One more photo. This is a reproduction of a Jefferson twin cylinder racer that has an original Waverley v-twin motor. It also has an original gas tank that I first saw at Davenport in the 1990's. The rest of the bike I believe is repop. The motor came from John Giorno then went to Canada then to Doc Patt. I was supposed to buy that motor at Davenport one year but Doc Patt sold it to another guy despite our prior agreement. Last I new this bike in now on the west coast. Somewhere I have photos of the tank that I took at Davenport. Story from the tank seller was that he was sitting on the shitter reading a Hemming's magazine and saw a ad for this tank. This is the only known original tank in existence. He was asking $700 and I thought it was too much money. Boy was I a dumbass!

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