Originally Posted by
repechage
‘even if you can remove it, secure a replacement first. Way back Velox made a rubber “hat” that went over the roller. I would look at eBay or eBay.fr under Velox.
I had no idea that people had these for sale! I might have to pick one up. My old Jos block dynamo could use a new one.....
to the OP, the Velox rubber cap on my dynamo just presses over the metal roller. I imagine this is true for all other bottle dynamos... but would be interested in learning about other types.
Steve in Peoria
(with plans to retrofit LEDs into my dynamo, just for fun)