HarleyDavidson Knuckleheads rock the collectible motorcycle auction marketplace in Las Vegas


1945 HarleyDavidson Knucklehead EL S55 Las Vegas Motorcycle 2018

Now nicknamed the "Knucklehead" for its bulbous rocker boxes, surprisingly the new Harley-Davidson big twin was developed in Depression era America. The frame, forks, engine and much of the styling were all new.


1939 HarleyDavidson Knucklehead EL F168 Las Vegas Motorcycle 2017

The 1936 61ci Knucklehead was the first Harley big twin to use an overhead-valve layout. This configuration means that the location for the inlet and exhaust valves is in the cylinder head. These are then actuated by pushrods mounted on the outside of the cylinders. Detailed engineers drawing of a 1942 Knucklehead Engine. Pic: Daniel Hagerman


1940 HarleyDavidson EL Knucklehead F189 Las Vegas 2020

The 61 cubic-inch E, ES and EL Harley-Davidson models ushered in the transition from the long-serving but under-powered side-valve flathead V-twin engine to the higher tech and higher powered.


Thunderbike Knucklehead 1945 • Custombike & HarleyDavidson Gallery

Classic / Vintage (2) Harley-Davidson Knucklehead Motorcycles For Sale: 31 Motorcycles Near Me - Find New and Used Harley-Davidson Knucklehead Motorcycles on Cycle Trader.


1947 HarleyDavidson Knucklehead S106 Las Vegas Motorcycle 2017

The 1936 Knucklehead: Ahead of its Time. In the 1930s, Harley-Davidson had already solidified itself as a reliable maker, and that was proven through its acquisition of government contracts to supply motorcycles to both the US Military and other US governmental agencies. Even still, sales lagged as Harley took a backseat to its competitor, Indian.


1941 HarleyDavidson EL Knucklehead F287 Las Vegas Motorcycle 2017

The Knucklehead engine models, such as the EL and FL, are considered iconic and highly valued by classic motorcycle enthusiasts, with prices ranging from $80,000 to over $125,000. A far cry from today's Milwaukee-Eight engines, the iconic Harley-Davidson Knucklehead engine debuted as a V-twin, overhead-valve engine in 1936.


Thunderbike Knucklehead 1945 • Custombike & HarleyDavidson Gallery

(Museum object #2003.19.1) The FL was Harley-Davidson's first modern "heavyweight" motorcycle. Introduced in 1941, the FL featured the high compression version of the company's first 74-cubic-inch overhead valve V-Twin "Knucklehead" engine.


HarleyDavidson Knuckleheads rock the collectible motorcycle auction marketplace in Las Vegas

Lifestyle Harley-Davidson Knucklehead V-Twin Motorcycles - HISTORY OF THE BIG TWIN The H-D Knucklehead V-twin was introduced in 1936. Here's a look at the technical evolution of the 61-cu.-in..


1938 HarleyDavidson Knucklehead S202 Las Vegas 2020

The 1936 Harley Davidson EL "Knucklehead" is a classic American motorcycle that has become an icon of the motorcycle world. It is known for its distinctive "knucklehead" engine design, which featured overhead valves and rocker arms in a compact, high-performance package.


1941 HarleyDavidson EL Knucklehead Lot S124 Las Vegas 2017 Mecum Auctions

Follow the journey of this 1941 Harley-Davidson Knucklehead motorcycle and see how its latest owner finished a restoration project that began in the 1980s.


1941 HarleyDavidson EL Knucklehead S124 Las Vegas 2017

The Harley Davidson Knucklehead is a retronym referring to an engine blueprint produced by the American OEM from 1936 to 1947. This power mill had a piston displacement of 997—1,210 cm3 (61—74 ci), spewed 36—53 hp (26.8—39.5 kW), and was the forerunner of the Panhead and Shovelhead engines. The Knucklehead engine may have been rushed.


1947 HarleyDavidson Knucklehead S106 Las Vegas Motorcycle 2017

Published Aug 25, 2023 The Knucklehead was one of the first modern motorcycle engines ever produced, and provided a foundation for Harley-Davidson to build upon Mecum


1938 HarleyDavidson Knucklehead F159 Las Vegas 2019

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1947 HarleyDavidson Knucklehead FL S56 Las Vegas Motorcycle 2018

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1947 HarleyDavidson Knucklehead FL S56 Las Vegas Motorcycle 2018

Harley-Davidson Knucklehead Article by Vintage Vinny In 1936, Harley-Davidson introduced their first overhead-valve Big-Twin motorcycle, the 61 cubic-inch EL model. The new bike was originally known as the "61 Overhead". The nickname "Knucklehead" wouldn't come about until years later.


1946 HarleyDavidson Knucklehead F168.1 Las Vegas Motorcycle 2018

The Knucklehead is a bike that bends the norms in a market that is underappreciated by younger buyers. However, the motorcycle market doesn't act like the car market. Although 1940s cars aren't blossoming, 1940s American bikes have strong appeal to a surprisingly youthful audience, making them sound investments.

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