The Micro series from Pure Fix gives smaller and/or younger riders a taste of fixed-wheel fun. They're sized down, with 43cm frames, narrower bars, shorter stems, and 650c wheels. They sport the same steel frame and fork, plus tough, deep-dish wheels with city-friendly Kenda tires. The rear flip-flop hub goes from fixed to freewheel in minutes, so ride it fixie or casually coast. And with both a front and rear brake, you have plenty of stopping power.