16/06/2026
Train in watts, and you measure yourself in the unit of your own replacement.
The watt is named after James Watt — whose steam engine made the muscle obsolete. We took Joe Friel’s new training book as the occasion to dig into that number: a short genealogy of the power meter, from Helmholtz and Rabinbach’s “human motor” through Mosso’s fatigue research to the workshop where it was actually invented — not in Boulder, but in Jülich in Germany’s Rhineland.
1986, Ulrich Schoberer, strain gauges on the crank spider: for the first time, power was measurable in watts — independent of wind, terrain and heart rate. And that’s exactly what counts on the flats.
📖 Book review: Joe Friel — High-Performance im Radsport (Covadonga Verlag). Thanks to the publisher for the review copy.
Full story in the magazine → link in bio.