[johnandlions]

Originally Posted by xander1027

Kona Road House is the first to come to mind. There are probably others out there.

Originally Posted by hollowgram5

City + County in San Fransisco has been working on a house branded frame. Check their Instagram. I think it might fit your request.

https://www.instagram.com/p/BSNE-WiD_1k/

Originally Posted by sales guy

We make one! Our Enigma Elite HSS Disc has all those boxes ticked off. The pics online show a traditional axle and ISO mounts but we do it as a flat mount and thru axle also.

Great suggestions, thanks!

Originally Posted by kevinvc

Are you planning on doing a lot of really aggressive off-road riding? I'm not questioning your choice, just trying to understand this combination of specs.

Not super aggressive, but I would like a bike that feels confident in a multitude of situations can handle being tossed around. Also, I've got most of the parts needed for a build like this already and have been wanting a modern steel bike