Shimano BR-M7100 SLX Hydraulic Disc Brake Assembly Rear BlackThe Shimano BR-M7100 SLX Hydraulic Disc Brake Assembly uses a pre-bled system with brake lever, 2-piston brake caliper, and brake hose. The result is stable and versatile high-performance braking with a quick and easy setup. Customize the reach to make it easy to control your braking power more than ever. Uses Shimano Mineral Oil. Brake Caliper BR-M7100 2-piston. Available in Front and Rear.192790445878