Originally Posted by LóFarkas
Yup. SS became rare as everyone became able to afford a reliable, good derailer, so makers stopped caring about making their frames SS-friendly. They rather made the dropouts more derailer-friendly and foolproof (loose QR, anyone?). Given how SS/fixed is spreading like wildfire, horizontal may come back from the grave. I hope it will.
Most, if not all, of the modern SS/fixed bikes I've seen use track ends. Even the ones with road geometry. The Bianchi San Jose For example.
