Standard Kasai Dynacoil hubs, like SON and SP can not be serviced by a dealer or consumer. They are sealed at the factory. Dynamo hubs fail under certain conditions, usually by water contamination. If this happens in the field, you cannot fix it. If it happens in the shop or home you still need to cut the hub out of the wheel and ship it, on your dime, to the factory
Lightweight and efficient power generation. Achieves 72% efficiency at 10mph.
– 6v/3w
– Standard QR axle
– 6-bolt disc mount
– Compatible with 26″ to 700c wheels
– Meets German StVZO standards
