This is Jeff Nichols' fifth collaboration with Michael Shannon.
In October 2018, Jeff Nichols revealed he had been thinking about making a biker film set in the 1960s for five years, although he did not at that stage have a script, and mentioned the idea on the set of Long Way Back Home to Michael Shannon who reportedly told him "You've been talking about that damn idea for so long. You're never gonna make that [film]".
The biker gang that inspired the film still exists as of 2024 and is a rival to the Hell's Angels.
Inspired by the 1967 photography book of the same name by Danny Lyon.