Ksport RPBC004 4-Piston Replacement Brake Calipers for 11-14 Inch Rear Big Brake Kits

The Ksport RPBC004 is a direct replacement pair of 4-piston rear brake calipers designed for Ksport big brake kits using 11-inch, 12-inch, 13-inch, and 14-inch rear rotors. Built for serious street and track use, these calipers deliver the same premium construction found in Ksport's original big brake systems, ensuring a true like-for-like replacement.

Key Features:

• Forged One-Piece Construction: Machined from a solid billet of aerospace-grade aluminum — not cast or welded — for perfectly uniform wall thickness and maximum structural integrity
• Eliminates Weak Points: One-piece design prevents the fracturing, warpage, and long-term failure common in multi-piece or cast calipers
• Aluminum Pistons: Lightweight aluminum pistons provide excellent heat transference for smooth, even engagement without drag
• Opposed-Piston Design: Ensures consistent brake pad grip and even wear on both sides of the rotor
• High-Temperature Seals: Heavy-duty seals engineered to withstand racetrack operating temperatures
• Titanium Brake Pad Retainer Clips: Lightweight and corrosion-resistant for secure pad retention
• Stainless Steel Brake Pad Wear Plates: Standard on every caliper for long-lasting performance
• Corrosion Resistant: Aluminum construction keeps caliper operation uncompromised over time
• Color Options: Standard painted finishes in Orange, Red, Black, and Yellow; premium high-polish Silver, Gold, and Titanium finishes available; over 20,000 custom color options available for an additional fee

Compatibility: Fits Ksport rear big brake kits with 11-inch, 12-inch, 13-inch, and 14-inch rotors. Note: Caliper mounting brackets are sold separately.

Sold as a pair (2 calipers). These replacement calipers allow you to restore full braking performance to your Ksport big brake system without replacing the entire kit.