Click on the links below to download instructions (pdf format).

Rene Herse Taillight Instructions (PDF)

For technical questions about SON generator hubs, please check the manufacturer’s web site.

More Information

How many Lumens do SON lights put out?

The light output in Lumens is easy to measure, but it doesn’t tell much about how good a light is. More important is the beam shape and how the light output is distributed. Read more…

Which hub do you recommend for my bike?

We’ve selected what we think are the best generator hubs for most riders. The SON Delux has the lowest resistance, wide flange spacing for the strongest wheels, and SON’s unique pressure compensation system that prevents moisture from entering the hub during temperature changes. The SON Delux is available in models for disc brakes and rim brakes.