Fixed gear — a fixed-gear bicycle (commonly abbreviated as fixie) is a type of bicycle distinguished by a drivetrain in which the rear sprocket (or cog) is threaded and locked directly onto the rear hub, eliminating any form of freewheel mechanism. This means the rear wheel and the pedals are permanently synchronized: if the wheel is moving forward or backward, the cranks and pedals rotate accordingly at exactly the same rate. There is no possibility of “coasting,” and the rider is mechanically

10 Unspoken Rules of Fixed Gear Cycling