Tech

The parts that move a bike, explained without the marketing. We cover chains, sprockets, chainrings and the lab testing that tells you what is really fast.

We write about drivetrain technology because it matters twice. It decides how long a commuter's or a fleet's bike stays on the road. And in elite racing it decides results, which means it decides odds. Every piece here links the engineering to what it changes on the road and on the track.