Originally Posted by
koenbro
@Tourist in MSN I stand corrected. The Son28 is indeed better suited to my needs (specifically charging stuff during the day), and I missed that part when reading about them. Thank you for pointing it out. I have called the wheelbuilder and asked them to replace the front hub. Seems like it's the same price.
For touring where you are charging up batteries, more output is better. But for randonneuring you are probably relying on hub power for lighting (and maybe battery backup), and when LED lights came out, people that were not in Germany and had a choice of equipment started using a lower output hub to try to get a bit less drag. Then later, Schmidt changed the name of the hub.
My SP hub, I can't feel any drag from the hub with light on or off, but if you are riding against the clock, even an imperceptible difference in drag can be something to avoid. SON and SP hubs are quite similar for drag levels.
Several years old, but good discussion of dynohubs.
https://www.cyclinguk.org/sites/defa...ub-dynamos.pdf
A few years old, but good discussion of USB chargers. What I called a pass through cache battery, they call it a buffer battery. There are some newer chargers out now that are not covered, but it gives a good background on chargers and some good graphs of output, etc.
https://translate.google.com/transla...nft.de%2F21%2F