This is a frame mounted brake cable hanger for weird situations that don't allow you to use of the usual headset or seat bolt cable hangers, such as small frame with a slammed stem; not enough space for smooth cable routing directly under the stem; maybe there's not enough space in between your headset locknut and top cup to put a sandwich cable hanger. And other situations along those lines.
Includes a recessed Allen nut and long bolt to mount it to your fork crown.
This thing will also reduce brake shudder and should shush that hard to get rid of squealing (just as long as your brakes are also properly toe'd, of course).
Improved v2 with a built-in barrel adjuster, because you can never have too many barrel adjusters on the bike.
For use with centerpull or cantilever brakes.