The Shimano Deore MT500 Disc Brake Caliper without Adapter is a Twin Piston brake caliper that provides efficient braking in a minimalist design. Designed for use with Mineral oil which is non-corrosive and less hazardous than conventional hydraulic fluid. Shimano Deore MT500 Disc Brake Caliper without Adapter Features The one way internal fluid circuit makes bleeding easy, while great piston retraction increases pad to rotor clearance Shim-less mounting bracket allows for quick installation and set up Compatible with international standard and post mount forks To be used in conjunction with Shimano hydraulic brake levers Comes as standard with B01S resin pads (can be used with sintered) For Front/Rear use.