It is common drilling on these seatpost for dynamo routing. A lot of frame builders do it for custom bikes w seat mounted rear lights.
The hole is very small and under the saddle so don’t think it needs filling. It’s similar to a breathing hole on a stay.
@motoko started
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It is common drilling on these seatpost for dynamo routing. A lot of frame builders do it for custom bikes w seat mounted rear lights.
The hole is very small and under the saddle so don’t think it needs filling. It’s similar to a breathing hole on a stay.