I couldn't find a Garmin mount that fit on the Nitto stem on my vintage bike, and couldn't find quite what I wanted on here. The taper and bend of my bars make it so normal bar clamp mounts won't hold, so I designed this one to centrally mount my Garmin Edge.

This Garmin mount will fit a quill stem that's approximately 24mm diameter. You could also use this as a on older 25.4 mm bars, with the mount turned 90 degrees (would have to drill new 3mm holes instead of using the printed ones.

*Update: I made another design with a mount for either a light or a GoPro. Print this one with the "flat" side of the light mount against the print bed, with support as needed, for best results

You will need to get the mount adapter separately (see link below), and the screws included with that kit will screw directly into the holes in this, no nuts needed. I sized the hole to be able to use a piece of inner tube between this and the stem to give it some grip, and that makes it hold strong. The zip tie holes are sized for standard zip ties.

Important: Print on it's side, with the hole for the stem running vertically. This will make the layers go so the zip ties won't pull to separate the layers. Use support as needed.

https://www.amazon.com/Bike-Mount-Garmin-Replacement-Accessories/dp/B0B4FTD4T1/