A Biker mod based around booze, bikes and bullets. And mixing all of them together.

Ideas include:
More bikes: Including some weaponized bikes. Weather bifurcating someone at the waist with a chainsaw bike, Or heralding you approach with a hail of lead from the twin machine guns mounted to your front, Or even having a friend on a bunch of new "Turret" bikes gunning down any poor sap off the road.

Biker based apparel, Weapons & Deco: Leather jackets and mechanic's overalls. Brass knuckles and lead pipes. Neon beer signs and raunchy mag posters. It all makes the difference between a normal bar fight, And a BIKER bar fight.

New memes: From starting bar fights to treating bikes like an extension of yourself. These new memes are great for giving you a real feeling of being in some dingy dive bar in the middle of nowhere.

New Storyteller: Billy Biker, On the outside, A rude, Brutal individual who'd crack a skull open for spilling his beer. On the inside... The exact same. But he also loves stories about long adventures down the long roads of the Rimworld. A flashback to a time long, Long passed. Bikes, Booze, Babes and bullets. Hit that long lonesome road with your fellow bikers at your back. Hear your bike's engine roar. And make sure everyone knows your name.

New Mechanics: Form your very own biker gang and (When your able to get NPCs to ride vehicles.) Go toe to toe, tire to tire in bike wars against opposing gangs, And climb your way to becoming top junkyard dog.