Post mount brake caliper holder (bicycle)

**Update 4/22/2019:** [Seth's Bike Hacks](https://www.youtube.com/channel/UCu8YylsPiu9XfaQC74Hr_Gw) is a fantastic youtube channel that if you aren't following, you should. Seth recently posted [another hacks video](https://www.youtube.com/watch?v=n1-hqwaL4-I&t=6m22s) where he shows that you can use valve stem nuts from Presta valves to accomplish the same as this thing. If you're like me, you've got a hundred or so of those little nuts lying around, so that might be a better option.

When I'm