Sram/Avid XO disk brakes, 160 mm Rotors. Brand new, still in box. $350 or best offer. Specs from Srams website below. $350 or best offer.

Weight 315 grams
Lever Material Carbon Fiber Lever, Aluminum Body
Caliper Design 2 Piston, Forged 2-piece Aluminum body, Adjustable Banjo
Finish Red, Black, Silver
Rotor HS1 160
Pad Organic, Top Loading with Aluminum backing plate
Fluid DOT 5.1
Mount Ambidextrous
Adjustment Reach Adjustment, Adjustable Banjo
Special Features TaperBore Technology, MatchMaker X Compatible