Originally Posted by
sheddle
I believe the actual manufacturer is Maxway, who make steel frames for a large number of mass-production companies like ACB/Surly/Jamis, not to mention other companies like Ritchey.
Maxway's site doesn't mention ACB but does mention the other major QBP brands of Salsa and Surly, so it's a safe bet they make ACB frames too.
That, and the fact that All City has pictures of the inside of a Maxway factory in a
“blog” post on their website.
Originally Posted by
sheddle
I'm guessing "612" is some kind of own-brand for a custom-ordered crmo profile, or a mix of existing cro-mo tubes. This isn't really unprecedented (see: Raleigh USA branding their general 4130 tubes as "555") It's certainly not some kind of tube brand that ACB makes and welds themselves.
That, and the fact that All City has a
”blog” post on their website saying exactly that.
-mr. bill