Ksport BKMZ051-445SO DualComp Rear Big Brake Kit Slotted Rotors - 4-Piston 14in

The Ksport BKMZ051-445SO DualComp Big Brake Kit is a complete rear brake upgrade engineered for drifting and rally racing applications. This innovative dual-function system integrates a single 4-piston caliper that simultaneously serves both the foot brake and handbrake — with 2 pistons dedicated to each function, each operating independently on its own hydraulic circuit. This eliminates the need for a separate handbrake caliper, reducing weight and simplifying the system.

Key Features:

• 4-Piston Dual-Function Caliper — 2 pots for foot brake, 2 pots for handbrake, each on independent hydraulic circuits
• 14-inch (356mm) Slotted Floating Brake Rotor — two-piece design for superior heat dissipation and reduced warp resistance
• Lightweight Two-Piece Rotor Construction — center hat crafted from 6061-T6 aircraft-grade aluminum, typically up to 50% lighter than OEM rotors
• Polished Titanium Handbrake Cylinder and Lever — enhances feel, appearance, and driving control
• CNC Machined Carbon Steel Caliper Brackets — bolt directly to OEM caliper bracket location with no vehicle modifications required
• D.O.T. Compliant Stainless-Steel Braided Brake Lines — included as standard
• Formula Drift Legal — tested and proven on professional drift and rally circuits
• Compatible with 18-inch wheels and above

What's Included:

• 4-Piston DualComp Calipers
• 14-inch Slotted Floating Brake Disc
• Performance Brake Pads
• Polished Titanium Handbrake Cylinder and Lever
• CNC Machined Caliper Brackets
• Stainless-Steel Braided Brake Lines
• All Required Installation Hardware

The DualComp system's two-piece floating rotor design allows the outer ring to expand and contract independently from the aluminum center hat, drastically reducing the risk of warping under sustained heat. The aluminum center section also acts as a heat sink, drawing thermal energy away from the rotor surface faster than traditional one-piece steel rotors. The result is fade-free, consistent braking performance whether on the track or street.

Specifications:

• Rotor Diameter: 356mm / 14 in.
• Rotor Style: Slotted
• Caliper Type: 4-Piston
• Position: Rear
• Warranty: 12 months (manufacturer defects)