It's a custom build frame and fork with drilled steerer for internal routing. Has a polished (by me) Ultegra RX derailleur, DT 180 rear hub and Praxis Works Zayante crankset.
Superb as usual dude. Very interested to know how you went about polishing the RD? I looked at the pressed pins and backed off, went to SRAM as it's all easy to pull apart.
Calipers polished too I see.
Did you feed everything at the top of the HT?
do you have any more build details on this please :)