>>1488804BMX are an option for bombproof SS/Fixed.
RNC (titanium)
Profile
Origin8
Neptune
MCS
etc.
Also USAMade chainrings (yes that's their name...)
Powercranks if you have dentist money
Cane Creek
Ingrid
White Industries makes a couple freewheels (single/double).
Velo Orange
Old bike parts, your lbs should have a used bin cheaper than ebay
If you want shiftable gears, in ascending "beat my dick with a granite tile" price: Sturmey-Archer, gates belt drive, nuvinci CVT
Only a matter of time before people start figuring out a viable 3d printed derailleur with minimal fabrication needed as well, like the old crappy delrin simplex prestige ones. Even Grant sells shimano despite his autism, because few companies are actually designing their own.
