Originally Posted by
Metzinger
^It should be noted that those don't appear to be fully grooved and thus would not be suitable for non-grooved bars.
I don't quite get the purpose of those.
You're going to need to secure the housing to the bar with electrical tape anyhow, how is that superior to tape (or not?). It doesn't look lighter or more convenient and you end up with a giant thing at one end of the bar wrap.