Adding dynamo powered lights to a road bike with a SON28 hub dynamo
Building a dynamo wheel and hiding the wiring inside the frame.
- Answers
- How do you add dynamo powered lights to a road bike that has no dynamo?
- Topics
- Durable · Limburg · bike · creating · mobility
- Full article on willem.com
- https://willem.com/en/2023-11-01_and-there-is-light/
Summary
To add dynamo lights to my dynamo-less road bike I had a new wheel built around a SON28 hub dynamo with 32 spoke holes, then routed the wiring through the fork and frame to front and rear lights.
Full text
My Schindelhauer Siegfried Road had no dynamo, so I asked the factory for a fitting wheel. They could not supply one, but gave me a rim and the exact spec I needed: a SON28 hub dynamo with 32 spoke holes. A local wheel builder laced the custom wheel, because tensioning a wheel properly is beyond my own skill. For the wiring I drilled a small hole in one of the aero shaped frame tubes and removed the bottom bracket, crank and pedals to reach inside. I first pushed a stiff copper cable through as a guide, then used it to pull the thin wires. The rear light cable runs down through the seat post. I soldered the leads, shrink wrapped them, and left spare cable with clamp connectors so parts can be removed later.