And unlike the insane 3,599-piece Bugatti Chiron, this one won't take forever to build—though you'll definitely need some patience to put all 1,023 parts together.
Completed, the Lego Creator Expert model stands 7 inches high and wide, 12 inches long. Spinning the rear wheel "fires" the miniature Milwaukee Eight engine's pistons through the dual-exhaust.
The handle bars, gear shifters, brake and kickstand can also all be engaged, while other thoughtful features like the teardrop fuel tank, integrated speedometer and solid-disc wheels add a lifelike feel to the little hog.
To celebrate its launch, Lego Master Builders made a to-scale model of the Fat Boy out of 69,569 pieces complete with engine sounds and light effects.
The Lego Creator Expert Harley-Davidson Fat Boy will be available online for $100 beginning August 1.