Ksport BKMZ180-621CO Big Brake Kit Floating Rotor 4/6/8 Piston Caliper Cross-Drilled

The Ksport BKMZ180-621CO Big Brake Kit delivers serious stopping power through a precision-engineered 2-piece floating rotor design paired with your choice of 4, 6, or 8 piston caliper configuration. The full-floating disc assembly reduces both rotating and unsprung weight while allowing the outer rotor ring to shift slightly under load, promoting better self-centering in the caliper, lowering brake drag, and delivering more even pad contact across the braking surface. The floating design also eliminates thermal distortion — preventing the disc from warping or the braking surface from cupping under extreme heat.

Each caliper is CNC machined from a single billet of aircraft-grade aluminum — never cast or welded — providing perfectly uniform wall thickness and superior structural integrity throughout. The opposed-piston caliper design significantly improves pad wear evenness and caliper rigidity compared to OEM sliding-caliper setups. Aluminum pistons, high-temperature seals, and stainless-steel brake pad wear plates are standard on every caliper. Each caliper weighs just over 5 lbs., offering substantial unsprung weight savings over stock.

Key Features:

• 2-Piece Floating Rotor: Outer ring floats to self-center in the caliper, reducing brake drag and preventing heat-induced warping or surface cupping
• Caliper Options: Available in 4, 6, or 8 piston configurations to match your braking demands
• Aircraft-Grade Billet Aluminum Calipers: CNC machined from a single block — no casting, no welding — for consistent strength and corrosion resistance
• Opposed-Piston Design: Improves pad wear consistency and caliper rigidity over OEM floating-piston designs
• Aluminum Pistons with High-Temp Seals: Better heat resistance for sustained performance under heavy braking
• Stainless-Steel Brake Pad Wear Plates: Standard on every caliper for long-term durability
• Unique Slot Design: Proprietary rotor slots reduce braking noise and expel gas and pad debris faster than conventional slot patterns
• Cross-Drilled Rotors: Run cooler than slotted rotors — recommended for street and daily-driven applications
• Heat Treated and Balanced Rotors: Every rotor is heat treated and dynamically balanced before shipment
• D.O.T.-Compliant Stainless-Steel Braided Brake Lines: Eliminate line expansion under pressure for a firmer, more responsive pedal feel
• Bolt-On Installation: Designed for easy installation with minimal tools required in most applications

Cross-drilled rotors run cooler and are the recommended choice for daily-driven vehicles, while slotted rotors are better suited to track-focused applications with heavier, repeated braking cycles. All Ksport Big Brake Kits are backed by a 12-month manufacturer's warranty covering defects in materials and workmanship.