1953 Harley-Davidson KK Engine no. 53KK2817
Lot 258
1953 Harley-Davidson KK
Engine no. 53KK2817
Sold for US$ 13,800 inc. premium
Lot Details
1953 Harley-Davidson KK
Engine no. 53KK2817
Rarest of the Pierce collection's K-model Harleys – in fact, super-rare by any accounting – is this 750cc KK, the factory hot-rodded version of the flathead V-twin introduced in 1952. Already a bold step into the future for Harley-Davidson, with unit-construction engine/gearbox, hydraulic suspension at both ends, a foot shifter and hand clutch, the "Double K" was externally identical to the standard roadster. What set it apart was its massaged motor, which benefitted from a factory-installed speed kit that included a roller-bearing bottom-end, lightened tappets, larger valves, ported-and-polished cylinder heads and high-performance camshafts. Those same improvements would be seen two years later in the KHK models, but they debuted here with the 1953 KK.

Saleroom notices

  • Please note that this motorcycle is titled under its engine number and its title is in transit.
Auction information

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