I'm not sure it's even possible to source most of the components state-side these days, although there are some custom steel frame builders still around. The move to mostly carbon fiber has made it more difficult to compete locally but I'd love to see an American CF manufacturer step up & start producing for several high end brands. Only problem is finding Americans willing to work.Still the best in the game making frames in Santa Ana California. S&M Bikes.
They have a 29r frame for us bmx guys trying to relive our youth. lol
I recently got back into riding. It’s been a blast.