
Tens of millions of dollars and countless man-hours go into Harley-Davidson's King of the Baggers operation. None of those resources go to waste, either, with the Motor Company snatching the KotB crown in 2021 and nearly repeating in 2022. The fruits of the race team’s labor go beyond the circuit as well, with H-D engineers and designers fashioning race-developed parts for brand faithful.
Now, Harley brings even more KotB-proven performance to the market with its Screamin' Eagle 135ci Stage IV crate engine. The new top-dog Milwaukee-Eight V-twin features the same 68mm throttle body and CNC-machined intake manifold originally designed for Kyle and Travis Wyman’s championship-contending Road Glide Special. Screamin' Eagle Extreme CNC-ported cylinder heads, high-performance valve spring, and an SE8-517 high-lift camshaft take full advantage of the V-twin's larger 2,212cc volume.