bicycle bottle mount

On bike tours, we like to drink sparkling water and take 1 liter PET bottles with us for this purpose. Unfortunately, these do not fit in the bottle holders of our bikes.

I have searched on Printables.com and unfortunately found no suitable holder. But I have found many many suggestions and solution ideas in the community, thank you. 

Therefore, I have this bottle cage designed to take the PET bottles from Pierre on, which we prefer.

The bottles can be attached normally or upside down.

Printed in nobufil ABS+ Candy Red on VORON 2.4