Ksport BKMZ250-435SO DualComp Rear Big Brake Kit 4-Piston Caliper 13in Slotted Rotor

The Ksport BKMZ250-435SO DualComp Big Brake Kit is a complete, bolt-on rear big brake upgrade engineered for high-performance driving, drifting, and rally racing. This innovative dual-caliper system combines foot brake and handbrake functionality into a single, compact 4-piston caliper, eliminating the need for a separate handbrake caliper.

DualComp Dual-Function Caliper System:

• 4-piston design — 2 pistons dedicated to the foot brake circuit and 2 pistons dedicated to the handbrake circuit, each operating independently on its own hydraulic system
• Formula Drift legal — tested and proven on drift and rally racing circuits
• Compatible with 17-inch wheels and above

Two-Piece Floating Brake Rotor:

• 330mm (13 in.) slotted rotor for improved heat dissipation and bite
• Rotor weighs up to 50% less than OEM rotors of the same size
• Outer ring expands and contracts independently from the center hat, significantly reducing the risk of heat-related warping
• Center hat crafted from 6061-T6 aircraft-grade aluminum for reduced rotational mass and rapid heat transfer away from the braking surface

Additional Hardware:

• Polished titanium handbrake cylinder and lever for precision handbrake modulation
• CNC-machined carbon steel caliper brackets for precise OEM-location bolt-on fitment
• DOT-compliant stainless-steel braided brake lines included

What's Included:

• 4-piston DualComp caliper(s)
• Two-piece floating slotted brake disc(s)
• Performance brake pads
• Polished titanium handbrake cylinder and lever
• Stainless-steel braided brake lines
• CNC caliper brackets and all required hardware

The Ksport DualComp system installs with minimal tools and requires no permanent vehicle modifications in most applications, making it one of the most practical big brake upgrades available for performance and motorsport use.