I run codes. Used them a lot on my DH bike in the UK and had no issues. I'm having a few issues on the set I'm using on my normal bike out here though. The pad adjustment lever has broken on one which is a real problem, it means that you can't easily fit new pads. The pistons on the rear brake seem to have been damaged as well, maybe by overheating but that's pure speculation at the moment! I just noticed it and will be stripping them down to have a closer look over the next few days.
Other than those two issues they have been great.
