Prebled disc brake kit for use with separate RapidFire shifters . Includes: BL-M975A MC/lever, BH59 0/0d tubing kit, BR-M975 (74mm) 2-piston caliper, metal-compound pads, and additional olive/barb for shortening tubing (if needed). Radial design, all-aluminum master-cylinder/lever offers improved power and reduced size for "zero interference" cockpit mounting . 1-piece (monobody) forged/machined, opposed 2-piston caliper with titanium backing plate disc pads. Designed for use with Shimano brand mineral oil (no DOT fluid). *Rotors and adapters sold separately, use: SH-65616/65600/65631 for RT75 6-bolt rotors; SH-65503/65504/65505/65506 for RT97 CenterLock rotors; and SH-65570-65584 for 74mm caliper adapters.