Bicycle mirror mount

This bracket will provide an interface to mount a rear-view mirror, which normally would fit on the end opening of your handlebars, if for any reason you need to leave your grips free of any accessories.

The bracket will fit on the 31.8mm section of the handlebar close to the stem. It replicates the internal diameter of the handlebar, where you can secure a 17.5mm quill mount mirror.

Two versions for the bottom part, with straight or a 45° angle cylinder.

You will need two additional 4mm screws and nuts (preferably stainless steel).
updated the top part so that M4x16 screws will do

~~I printed in PLA with quite a lot of infill (50%). Probably overkill but I wanted to make sur I could tighten the screws without remorse.~~
Edit : PETG and/or full infill works better, road vibration, potholes and other real life dynamic loads have broken the first versions of this item. Much better with fully filled prints.

Printed with supports. the bottom parts should be printed upsid