Shimano SLX BR BR-M7120 4-Piston Disc Brake Set Resin Metal MTB Features Quicker rebound between actions maintains rider concentration Greater flexibility and action-optimized cockpit layout Update brake lever shape Seamless operation High rigidity 4-Piston Caliper Brake Caliper for Postmount Brake Optimized ergonomic 2-finger brake lever One-Way bleeding I-Spec EV compatible - securing the shift lever on the brake lever SM-RT70 Centerlock rotors in 140, 160, 180, 203mm are available separately! Product features Use: MTB Group: SLX M7100 Model: BR-M7120 (front+rear) Brake type: Hydraulic Disc-Brake Brake lever: BL-M7100 Lever length: 2-Finger Mount: left + right Clamp: open Reach adjustment: Yes, without tool Caliper: BR-M7120 (4-Piston) Brake mounting: Postmount Brake pads: N03A Resin with Fin Brake hose: SM-BH90-SBM Brake hose lengths: front 900mm + rear 1600mm (shortable) Cable connection: Straight brake lever / Straight caliper One-Way bleeding: Yes Brake fluid: Mineral oil Recommended brake rotor: SM-RT70 **Depending on the size rotors you are using you may need an additional post mount or is mount adapter to fit these calipers to your application. Please contact us and we can provide them in your order for an additional charge.** If you need Olive insert (for changing the rear hose length), please contact us before placing order Material Lever: Aluminum Anodized Caliper: Aluminum Painted ***These are OEM Shimano Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging.***