Ksport BKMZ250-445CO DualComp Rear Big Brake Kit 4-Piston Caliper with 14 in. Drilled Rotors

The Ksport DualComp Big Brake Kit is a complete, all-in-one dual-function brake upgrade engineered for drivers who demand independent foot brake and handbrake control from a single compact caliper. Designed with drifting and rally racing in mind, this kit delivers race-proven stopping power in a straightforward bolt-on package.

Innovative DualComp Caliper Design:

• Single 4-piston caliper with 2 pistons dedicated to the foot brake and 2 pistons dedicated to the handbrake — each system runs fully independent of the other
• Formula Drift legal configuration suitable for 18-inch wheels and above
• CNC-machined carbon steel caliper brackets allow the oversized calipers to bolt directly to OEM caliper bracket locations
• Includes a polished titanium handbrake cylinder and lever for improved aesthetics and precise handbrake control
• DOT-compliant stainless-steel braided brake lines included as standard

Two-Piece Floating Rotor Technology:

• 14-inch (356mm) drilled rotor with 6061-T6 aircraft-grade aluminum center hat — commonly up to 50% lighter than OEM rotors of the same size
• Floating two-piece design allows the outer rotor ring to expand and contract independently, dramatically reducing the risk of warping under high heat
• Aluminum center sections act as heat sinks, conducting heat away from the rotor faster to the surrounding air and hub assembly
• Lower rotational mass provides faster wheel deceleration and sharper brake response

Complete Kit — Everything Included:

• 4-piston DualComp calipers
• Floating two-piece drilled brake disc
• Performance brake pads
• Titanium handbrake cylinder and lever
• Stainless-steel braided brake lines
• CNC caliper mounting brackets
• All required hardware

Installation is designed to be straightforward with minimal tools required and no permanent vehicle modifications needed in most applications. Backed by Ksport's 12-month manufacturer defect warranty, this big brake kit is built to order and represents a track-tested solution for performance street driving, drifting, and rally competition.