The Fat Boy 114 is the Milwaukee-Eight 114-equipped version of Harley-Davidson’s modern Softail Fat Boy, a full-size cruiser that returned in dramatically updated form for the 2018 model year. Harley-Davidson revived the Fat Boy nameplate for the new Softail platform in 2018, giving the bike a wider, more planted stance, solid-disc Lakester-style wheels, broad tires, and a heavy chrome visual theme that separated it from the rest of the cruiser range. The 114 designation identified the larger-displacement factory version of that updated Fat Boy line.
Within Harley-Davidson’s lineup, the Fat Boy 114 sat as the more forceful expression of the model, combining the Fat Boy’s unmistakable slab-sided styling with the bigger Milwaukee-Eight 114 engine option. It quickly became one of the most recognizable modern Harley cruisers, not because it tried to look like a classic Fat Boy from the 1990s, but because it preserved the model’s iconic silhouette while translating it into the contemporary Softail family.
For the 2025 model year, Harley-Davidson simplified the range and marketed the bike simply as Fat Boy, while the 114-badged version is documented through the 2024 model year. As a result, Fat Boy 114 is best understood as a distinct 2018–2024 era of the Fat Boy nameplate rather than a separate long-running standalone model. Its significance lies in bridging Harley-Davidson’s heritage cruiser identity with the company’s later-generation Softail chassis and big-twin powertrain strategy.