Get the Shimano BR - MT200 replacement post - mount caliper disc brake with a black resin pad. This hydraulic brake offers excellent stopping power. It's a post - mount caliper, and it uses mineral oil as the hydraulic fluid. The rotor is not included, and the pad compound is resin, providing reliable braking performance.

Using this Shimano BR - MT200 disc brake is easy. First, make sure it's properly installed on your bike. When you squeeze the brake lever, the hydraulic system will transfer the force to the caliper, which then grips the rotor to stop your bike. Remember, the rotor is not included, so you'll need to have your own. As for maintenance, check the brake pads regularly. If they're worn out, replace them with new resin pads. Also, keep an eye on the mineral oil level in the hydraulic system. If it's low, top it up carefully. When not in use, store your bike in a dry place to prevent rust and damage to the brake components.