Originally Posted by
ColonelJLloyd
Doesn't braking (especially hub brakes) equate to torque?
No for rim brakes, yes for hub brakes. With a rim brake there is no torque on the hub at all. The stresses in the spokes due to rim braking are to increase the tension in the horizontal spokes leading backwards from the hub, and conversely reduce the tension in those spokes leading forward from the hub. If you didn't have a rear sprocket (or 5 or 6 or 11, etc) you could use radial spokes F and R.