A bit of a hack here, 650b converted flatbar cyclocross.
No name frame and saddle, Ritchey WCS kit, Ultegra flatbar shifters, Avid Speed Dial SL levers, Kinesis DC37 fork, Avid BB7 road disc front / Shorty 6 canti rear, FSA Afterburner 27/40 crank, Shimano SLX RD, Shimano 11-34 cassette, Syncros bottle cages. Wheels are Ambrosio Keba 650b 36h with 3x DT Revolution on XTR M965 hubs, Kenda Karma tyres.
What might be of interest is that the Avid Shorty 6 brakes in the rear have been modded with a longer slot, so they just about reach down to the brake track of the (smaller 650b) rim. Very close fit, will need to have an eye on it.
To make the Kenda Karma 2.0 sized tyres clear the chainstays, I had to take the side knobs off. Hope it doesn't expand over time, there is virtually no room. Thinking of modding the rear dropouts to find an extra 3mm or so. Guess I will have to store the rear wheel deflated for now. Hoping for an 650b x 1.9 tyre at some point.

Quite fond of the overall proportions with the 650b on the 58cm frame.