The Early Years

Harley-Davidson’s Knucklehead model, produced from 1936 to 1947, is often overshadowed by its more famous counterparts. Yet, this unique motorcycle boasts a distinctive design and innovative engineering features that set it apart from other Harleys.

The Knucklehead’s overhead valve engine was a departure from Harley’s traditional flathead designs. This new technology allowed for improved combustion efficiency and increased power output. The model’s tank shape, with its prominent “knuckles” or curves at the front and rear, also contributed to its distinctive appearance.

Despite its innovative features, the Knucklehead failed to gain widespread popularity during its production run. Several factors contributed to this lack of success. World War II had a significant impact on the motorcycle industry, with many manufacturers focusing on producing military vehicles instead of civilian bikes. Harley-Davidson was no exception, and the company’s resources were redirected towards war efforts.

When the war finally ended, Harley-Davidson faced stiff competition from Japanese and European manufacturers that had continued to produce motorcycles during the conflict. The Knucklehead, already an older design by this point, struggled to compete with newer models offering improved performance and styling.

As a result, the Knucklehead is often overlooked in favor of more popular Harleys like the Electra Glide or Softail. However, its unique features and engineering innovations make it an interesting and collectible model among Harley-Davidson enthusiasts.

The Forgotten Knucklehead

The Harley-Davidson Knucklehead was produced from 1936 to 1947, a period that saw significant changes in the motorcycle industry due to World War II. The Knucklehead’s engine featured overhead valves, a departure from traditional side-valve designs. This innovation allowed for improved airflow and increased power output.

The tank shape of the Knucklehead was also distinctive, with a prominent fin on top and a curved shape that housed the fuel tank. This design element gave the bike its unique character and set it apart from other motorcycles of the time.

Despite its innovative features and unique appearance, the Knucklehead is often overlooked in favor of more popular Harley models. One reason for this may be that the Knucklehead was not as well-suited for long-distance touring as some of Harley’s later models, such as the Electra Glide. Additionally, the Knucklehead’s engine was prone to overheating, which made it less reliable than some other Harleys.

However, the Knucklehead has a dedicated following among collectors and enthusiasts who appreciate its unique character and historical significance. Today, restored Knuckleheads can be found in museums and private collections, serving as a testament to Harley-Davidson’s innovative spirit during the mid-20th century.

  • Engine specifications:
    • Overhead valves
    • 61 cubic-inch V-twin engine
    • 45 horsepower at 4,000 rpm
  • Tank shape features:
    • Prominent fin on top
    • Curved fuel tank housing
  • Production years: 1936-1947

The Advent of the Street Glide

Harley-Davidson’s touring motorcycles have long been a staple of American motorcycling, and none more iconic than the Street Glide. Introduced in 1999, the Street Glide marked a significant departure from Harley’s traditional touring models, boasting advanced features that redefined the category.

The Street Glide’s electronic suspension, for instance, allowed riders to fine-tune their ride with the push of a button. This innovative technology enabled seamless transitions between rough pavement and smooth highways, making long trips more enjoyable than ever before.

Another groundbreaking feature was the Boom! Box infotainment system, which provided an unparalleled level of connectivity on two wheels. Riders could access GPS navigation, Bluetooth connectivity, and even satellite radio, all from a user-friendly interface that made it easy to stay entertained on the open road.

The Street Glide’s design also played a crucial role in its success. Sleek and streamlined, with a low, laid-back seat and a windscreen that seemed to stretch on forever, this bike was designed for comfort and style. Its 103 cubic-inch V-twin engine provided ample power, while its anti-lock braking system (ABS) and traction control ensured rider safety.

The Street Glide’s impact on the touring motorcycle category cannot be overstated. It raised the bar for Harley-Davidson’s competitors, forcing them to innovate and adapt to changing market demands. Today, the Street Glide remains one of the most popular touring motorcycles on the road, a testament to its enduring appeal and influence on the world of motorcycling.

The Rise of the CVO

Harley-Davidson’s Custom Vehicle Operations (CVO) program was established in 1999 as a way to produce high-performance, limited-edition motorcycles that showcased the company’s engineering and design capabilities. The CVO program ran until 2012, during which time it produced some of the most notable Harley-Davidson models.

The Softail CVO was one of the earliest models produced by the CVO program. It featured a powerful V-twin engine producing 96 horsepower and was adorned with premium materials such as carbon fiber and diamond-cut chrome. The Electra Glide CVO was another popular model, offering a more touring-oriented package with features like cruise control, heated grips, and a premium audio system.

These models were highly sought after by Harley-Davidson enthusiasts due to their unique styling, high-performance capabilities, and limited production runs. The CVO program allowed Harley-Davidson’s designers and engineers to push the boundaries of what was possible on a motorcycle, resulting in some truly remarkable machines.

The Softail CVO and Electra Glide CVO were notable for their attention to detail and premium features, which set them apart from other Harley-Davidson models. The CVO program also allowed Harley-Davidson to experiment with new technologies and design elements, which would later influence the development of future models.

  • Softail CVO:
    • 96 horsepower V-twin engine
    • Carbon fiber and diamond-cut chrome accents
    • Limited production run
  • Electra Glide CVO: + More touring-oriented package
    • Cruise control, heated grips, and premium audio system
    • High-performance capabilities

The Future of Harley-Davidson

As Harley-Davidson continues to evolve, it’s clear that adapting to changing consumer preferences and technological advancements is crucial for its survival. One area where the brand has made significant strides is in its electric motorcycle offerings.

The LiveWire, released in 2019, marked a major milestone for Harley-Davidson as its first all-electric motorcycle. With its zero-emission powertrain and instant torque, it’s no wonder that the LiveWire has gained popularity among environmentally-conscious riders. But what’s truly remarkable about the LiveWire is its ability to maintain the classic Harley-Davidson design while incorporating cutting-edge technology.

The LiveWire’s sleek, aerodynamic bodywork pays homage to Harley-Davidson’s iconic styling, while its advanced battery management system ensures a range of up to 140 miles on a single charge. This fusion of past and present is a testament to Harley-Davidson’s ability to innovate while staying true to its heritage.

In addition to the LiveWire, Harley-Davidson has also released other electric models such as the CVO LiveWire Limited Edition, which features exclusive design elements like unique paint schemes and premium materials. These limited-edition models not only showcase Harley-Davidson’s commitment to innovation but also provide an opportunity for riders to own a truly unique piece of motorcycle history.

In conclusion, there are many surprising Harley-Davidson models that deserve attention. From the classic 1940s-era Knucklehead to the futuristic LiveWire electric motorcycle, Harley’s history is filled with innovative designs and engineering. Whether you’re a seasoned collector or just starting your Harley journey, these lesser-known models offer a fresh perspective on the brand’s rich heritage.