Why Your Single Speed Needs a 1 2 x 1 8 Bicycle Chain

If you've spent any time tinkering with a single-speed or a fixed-gear bike, you've definitely come across the 1 2 x 1 8 bicycle chain. It's pretty much the gold standard for bikes that don't have to worry about shifting between a bunch of gears. While modern road and mountain bikes are out there using paper-thin chains to fit eleven or twelve speeds on a tiny hub, the classic 1/8-inch chain stays thick, heavy, and incredibly reliable. It's the kind of part you install and, if you treat it right, almost forget is there because it just does its job without any fuss. ...

May 24, 2026 · 7 min · Wozniak Brad