Rear 4-Piston Brake Caliper Kit M8 Softail, Black4 Piston Rear Brake Caliper Kits improves braking performance on 2018 later M8 Softail models Innovative design allows you to keep factory brake lines eliminating the need to replace troublesome factory ABS lines (only kit on the market) Includes Ness 4 piston billet brake caliper Each kit includes billet caliper bracket, brake caliper, jumper brake line, banjo bolt and any necessary installation hardware Rear bracket kit properly locates the brake