Ksport BKHD021-611CO Big Brake Kit Floating Rotor with 4, 6, or 8 Piston Caliper Options

The Ksport BKHD021-611CO Big Brake Kit delivers a significant upgrade in stopping performance over the stock brake system. Engineered to dramatically reduce brake fade, this kit continuously cools and refreshes the brake pad surface under hard braking — making it equally at home on the street or the track. The bolt-on design installs with minimal tools and requires no vehicle modifications in most applications.

Aircraft-Grade Billet Calipers

Each caliper is CNC machined from a single block of aerospace-quality billet aluminum — never cast or welded — ensuring perfectly uniform wall thickness and eliminating weak points that can lead to flex or failure. This one-piece construction keeps each caliper to just over 5 lbs., saving significant unsprung weight compared to OEM units. Calipers are available in 4, 6, or 8 piston configurations with a differential bore design. The opposed piston layout improves pad wear consistency and greatly increases caliper rigidity over stock. Machined-in bridge tube protection grooves, aluminum pistons, high-temperature seals, and stainless-steel brake pad wear plates are all standard.

Two-Piece Floating Rotor Design

Ksport utilizes a two-piece disc assembly that reduces both rotating and unsprung weight — rotors commonly weigh up to 50% less than OEM rotors of the same diameter. The floating outer disc section shifts slightly as needed for better self-centering in the caliper, lowering brake drag and improving pad contact evenness. Critically, the floating design prevents thermal stress from extreme heat from warping the disc or cupping the braking surface, and helps eliminate vibration at higher speeds. Every rotor is heat treated and precision balanced before shipment.

Rotor Style Options: Cross Drilled or Slotted

• Cross Drilled Rotors — dissipate heat and brake gases efficiently; recommended for daily-driven vehicles as they tend to run cooler
• Slotted Rotors — expel gas and pad debris faster with Ksport's unique slot geometry that reduces braking noise; recommended for track and high-performance use

DOT-Compliant Stainless-Steel Braided Brake Lines

All Ksport big brake kits include DOT-compliant stainless-steel braided brake lines as standard equipment. These lines eliminate hose expansion under pressure, delivering a firmer, more responsive pedal feel compared to stock rubber lines.

Key Features:

• CNC machined one-piece aircraft-grade billet aluminum calipers
• Available in 4, 6, or 8 piston opposed-piston configurations
• Differential bore caliper design for optimized braking force
• Aluminum pistons with high-temperature seals and stainless-steel pad wear plates
• Two-piece floating disc assembly reduces rotating and unsprung weight
• Floating rotor design prevents heat-induced warping and surface cupping
• Choice of cross drilled (street) or slotted (track) rotor styles
• Heat treated and balanced rotors for consistent, vibration-free performance
• DOT-compliant stainless-steel braided brake lines included
• Bolt-on installation — no vehicle modifications required in most applications
• Caliper color options available including standard painted finishes and premium anodized upgrades
• Compatible with OEM ABS systems
• 12-month manufacturer's warranty against defects

Whether building a dedicated track car or upgrading a performance street vehicle, the Ksport BKHD021-611CO big brake kit provides the stopping confidence to match your vehicle's power.