Gain another mounting location for a light or bike computer by replacing your bicycle's stem cap with this part. The mounting tube is 31.8mm - the same size as many modern bicycle handlebars.

Similar to Paul's Stem Cap Light Mount, but this one can be made on a 3D printer.

Note that, this part will never be as bombproof as a Paul's part machined out of aluminum. This design was inspired by the Paul's part, but not a copy of it. However, this is an alternative that you can use to test fitment. If your light is not too heavy, it might work for you.

You can customize the design by checking it out: https://github.com/thrasher/stem-cap-light-mount