I built up an old Peugeot (UO8) frame to singlespeed a couple years ago. It remains one of my favorite rides only ocasionally topped by whatever recent project I'm working on. I love the simplicity of it. Mine is set to 69 gear-inches and has a cadence version computer on it just so I can see what I'm spinning. It's beautiful. No gear distractions. If you want to go faster, pedal faster. If you want to climb a hill, stand up and put you a$$ into it.