This post has been corrected. See note at the bottom for details. For the last five years, this column has avoided covering one of the hottest youth-culture urban crazes in the bike world: the fixie — ...

This fixed/single speed mountain-bike hub from Affix has a few things to dislike: the weird, oversized pie-plate-style ring for one, and the weight (570g or 1.3-pounds) for another. But if you can get ...

A flip-flop hub lets you ride as a single-speed fixed-gear (or “fixie”) or as a more traditional six-gear. Unlike most fixies, this model comes standard with a front brake. Plus, narrow bullhorn ...

Riding a fixie is fun, but sometimes you want to switch from fixed-gear to freewheel so you can lay back and take it easy. For example, instead of windmilling your pedals desperately fast on a ...