Buzz
While Harley's "Knucklehead" engines were gaining popularity, the 1938 Harley-Davidson UL opted for a flathead Big Twin engine.The 1938 Harley-Davidson UL stood out as one of the groundbreaking models introduced by Harley as the brand rebounded strongly from the challenges of the Great Depression.
Emerging from a tough phase in the early 1930s, Harley-Davidson was ready to move forward with an extensive range of 11 distinct models. These models were centered around "Big Twin" engines available in 61, 74, or 80 cubic inches, all featuring shared components.
The 61-cubic-inch V-twin, known as the iconic "Knucklehead," featured overhead valves, whereas the 74- and 80-cubic-inch V-twins were equipped with side valves.
The 1938 Harley-Davidson UL motorcycle was a Sport Solo variant equipped with a 74-cubic-inch flathead engine.
In 1937, flathead engines were upgraded with the recirculating oiling system, initially introduced on the Knucklehead. By 1938, further refinements were added: higher handlebars for improved comfort, a streamlined instrument panel featuring warning lamps instead of gauges, and fresh color options with updated striping.
Remarkably, Big Twin flatheads remained part of Harley's lineup for over a decade after the introduction of the iconic Knucklehead overhead-valve models.
Even the smaller 45-cubic-inch flathead V-twin persisted, powering three-wheeled Servi-Cars well into the 1970s, showcasing the enduring appeal of the flathead's straightforward design.
Proceed to the next page to view additional images of the 1938 Harley-Davidson UL motorcycle.
Explore additional articles and images about motorcycles by visiting:
-
Classic Motorcycles
- How Motorcycles Work
- Harley-Davidson Motorcycles
1938 Harley-Davidson UL Pictures
The elevated handlebars on the UL model offered riders a more relaxed and ergonomic posture.Featuring a 74-cubic-inch engine, the 1938 Harley-Davidson UL continued the legacy of flathead engines, which remained a staple in Harley's lineup for over a decade.
The UL model swapped traditional ammeter and oil-pressure gauges for red and green indicator lamps.
In 1938, the Harley-Davidson UL introduced fresh color schemes and updated striping options.
Harley's iconic bar-and-shield logo was prominently embossed on the horn.Discover more fascinating motorcycle articles and images by visiting:
- Classic Motorcycles
- How Motorcycles Work
- Harley-Davidson Motorcycles
