We have a new article which describes how the spokes transmit pedaling and braking torque between the hub and rim. The spokes do it by changes in tension — but how much does the tension change? The article explains the drawing below.
![Diagram showing how a spoked wheel transmits torque](http://cdn-0.sheldonbrown.com/blog/wp-content/uploads/2016/07/Torque-diagram-two-spokes.png)
Diagram showing how a tension-spoked wheel transmits torque