3TTT Stem Plug

I've got two 3TTT stems on Trek OCLV frames that are missing this plug.

Online (7/3/2021) I found folks selling NOS replacements for US$25 with shipping. This stem is from the 1990s.

So, a few minutes with calipers and SolidWorks, and a few revisions later I publish this for those in need.

This fits some models that have a 12mm diameter hole where the socket-head bolt sits.

You may need to select metric conversion in slicing software so that it prints the correct size.

Keep your stem bolt clean and dry.