The Pro+ rear system pairs 6P 6-piston calipers (DOT-compliant dust/weather seals, D0731 pads) with 14" two-piece slotted, drilled, zinc-plated rotors on NAS fasteners for excellent heat control and consistent bite. Baer’s clever backing plate doubles as the caliper mount and encloses a 1-piece park brake shoe. Stainless braided hoses and all mounting hardware are included; most 18"+ wheels clear without spacers.