Ksport BKAU051-434CO DualComp Rear Big Brake Kit with Floating Disc - 4-Piston

The Ksport DualComp Big Brake Kit is an all-in-one dual-function braking solution engineered for high-performance street and motorsport applications. Designed with drifting and rally racing in mind, this kit delivers exceptional stopping power while integrating both foot brake and handbrake functionality into a single compact caliper assembly.

Innovative Dual-Function 4-Piston Caliper:

• Single 4-piston caliper design — 2 pistons dedicated to the foot brake, 2 pistons dedicated to the handbrake
• Each braking circuit operates independently on its own hydraulic system
• Polished titanium handbrake cylinder and lever included for precise handbrake control
• Formula Drift legal configuration

Lightweight Two-Piece Floating Rotor:

• Two-piece floating brake disc design for fade-free, high-temperature performance
• Rotor weight commonly up to 50% less than OEM one-piece rotors of equivalent size
• Center hat crafted from 6061-T6 aircraft-grade aluminum to reduce rotational mass
• Outer rotor ring floats independently, minimizing warping risk from heat cycling
• Aluminum center section acts as a heat sink, dissipating thermal energy away from the hub

Forged One-Piece Caliper Construction:

• Calipers forged from a solid billet of aerospace-quality aluminum — not cast or welded
• Uniform wall thickness eliminates weak spots that can lead to fracturing or warpage
• Aluminum pistons with heavy-duty seals rated for racetrack temperatures
• Opposed-piston design ensures even pad wear and consistent grip on both sides of the rotor
• High-temperature seals, titanium brake pad retainer clips, and stainless-steel pad wear plates included

Complete Bolt-On Kit Includes:

• 4-piston DualComp caliper(s)
• Floating brake disc
• Brake pads (choice of street or race compound)
• CNC-machined carbon steel caliper mounting brackets
• Polished titanium handbrake cylinder and lever
• DOT-compliant stainless-steel braided brake lines
• All required installation hardware

Installation is straightforward with minimal tools required and no permanent vehicle modifications needed in most applications. CNC-machined carbon steel caliper brackets allow the oversized calipers to mount directly to the OEM caliper bracket location. Note: The OEM handbrake will not function once this kit is installed, as the DualComp system replaces that function entirely.