The one-speed revolution actually involves two different styles of bikes, singlespeeds and fixed gears. Fixed-gear fans like the late bike mechanic and writer Sheldon Brown tout the simplicity, feel and efficiency of the bikes; while detractors often prefer the mechanical advantages of derailleur b…
Many fixed-gear bikes are equipped with "flip-flop" hubs, designed to accept sprockets on either side. This is usually because they don't know the technique of "walking" the wheel back and forth in the fork ends. I know, I've tried it.
So instead of changing both your cog and your chainring by a co…