Shimano BR-M965 Disc Brake - XTR

"It's finally here, the XTR® Disc brake! Super lightweight one-piece "mono-body" caliper and opposed twin piston design has the perfect blend to maximize weight savings and performance. New lockring rotor mount reduces weight and makes for easy rotor changes. Rotor works with 2003 XTR® disc hubs only. Available in International Standard (specify FT or RR) and 74mm post mount (for use with Manitou® forks). Only includes caliper and rotor. Requires new XTR STI levers (see left).Weight: 557g front/563g rear. Black (BLK)."