air pump holder

I provide here a bracket for a bicycle air pump.
The bracket is mounted instead of a water bottle holder with 2 x M4 screws on the frame.

I provide 2 versions:
- V02 is adapted to a 36mm frame pipe on the back. However, with this version you need more support geometry, which is more complex to remove.

- V01 is flat on the back and also works very well.
The Velcro® could also be omitted, or replace it with an O-ring.