In 2010, alongside the standard Fat Boy, the American motorcycle maker released the Harley-Davidson Fat Boy Lo, a darker and lower-style cruiser machine. The bike retained the bold presence of the Fat Boy, offering a lower suspension, a lower, reshaped seat height, and a darker appearance.
The 2010 Fat Boy Lo received several new components, including a lower and narrower seat, a leather tank panel with an H-D medallion, and black-finished full disc bullet hole aluminum wheels with polished rims.
In addition, the bike featured many black-finished components, such as front and rear fenders, fuel tank, fork covers, frame, exhaust pipes with polished mufflers, and a black powder-coated engine with polished head covers and cooling fins.
Besides that, the 2010 Harley-Davidson Fat Boy Lo was identical to the standard Fat Boy, featuring the same performance characteristics. The Fat Boy was known for its distinctive styling, powerful engine, and wide, muscular appearance.
In the power department, the 2010 Harley-Davidson Fat Boy Lo took its muscles from a 1,584cc air-cooled V-twin fuel-injected engine with smooth power delivery, fast acceleration, and 127 Nm (94 lb-ft) torque with a maximum peak force at 3,000 rpm.
The six-speed Cruise Drive manual transmission was carried over from the standard model, along with the braking and suspension systems. The Fat Boy Lo was addressed for riders with a more petite inseam and those who want a lowered riding position.