Avid HS1 Heat Shedding Rotor 2014
Utilizing cross-drilled technology, the lightweight HS series stays cooler when your run heats up, offers enhanced wet-weather performance. The HS1 rotor takes braking to a whole new level of smooth.
These rotors for me have been quiet with both the Avid Elixers and also my Hope E4 brakes. I can not say too much about them since rotors are simple. They seem to stay cool enough and do not warp any easier than any other single piece rotor.