Faux Pro pursuit 650b x 700c

A garage sale find, this frame is a lovely oddity: it has lugs, track ends, big clearance, beautiful curved rear brake bridge yet no brake mount, and cable routing around the bottom bracket. For what, I'm not sure. Running a 'QR' threaded fork and a set of Alexrims DA22 staggered 650b 700c. Pretty rare to see skinny 650b's rolling around town these days in #Melbourne #fixedmindset