The reworked XX disc brake set is Avid's best performing and lightest weight brake they have ever produced. A new master cylinder and TaperBore internals provide consistency and air management to give the XX brakes total reliability in the field and ease of initial setup and subsequent adjustment.
The lever bodies are constructed from magnesium while the brake lever blade is carbon fiber. The caliper body is constructed of lightweight alloy.
The Avid HSX rotor has an alloy spider in the center that has a drilled steel rotor attached to it. This design helps lighten the load and add stiffness from torsional flex. At 284 grams per set, the Avid XX is one of the lightest brakes ever produced and thanks to the improved TaperBore bladder, it is one of the most reliable.