It's the choice of the pros who run a rotor. For 22 bucks it can be yours too. No more unwinding that cable after all those whips you do.-Mobeus Extruded and CNC-machined billet alloy components -AstroGlide Teflon bearing
-Thin profile increases cable pull
-Extra-deep cable ball receptacles eliminate cable pop-out
-Snap ring located on underside—not top—of unit is under no tension, so
-Mobeus cannot pull apart even under heavy braking forces
-Black anodized finish with screenprinted graphics