Seen on TrickTrack.
Up until recently I’ve been dismissive about riding a fixed gear without a front brake, but I’ve relented after seeing what trick riders have been doing with bar spin tricks. However, this bike routes a brake cable through the steerer tube down to the mechanical disc brake caliper. Voi la! Effective braking and bar spins.
Curiously, the fork also appears to have cantilever mounts for 700C and 26” in addition to the disc mount. Not that you’d use multiple brakes, of course.