Ksport BKBM010-621SO Floating Rotor Big Brake Kit with 4, 6, or 8 Piston Caliper Options

The Ksport BKBM010-621SO Big Brake Kit delivers serious stopping power for high-performance and track-driven vehicles. Built around a floating 2-piece disc assembly, this system significantly reduces rotating and unsprung weight while allowing thermal expansion to occur without warping or cupping the braking surface — a critical advantage under repeated hard braking conditions.

The kit is available with 4, 6, or 8 piston caliper configurations to match your specific braking requirements. Each caliper is CNC machined from aircraft-grade billet aluminum in a differential bore, opposed-piston design that improves pad wear consistency and caliper rigidity far beyond OEM performance. At just over 5 lbs. per caliper, the lightweight construction helps maintain optimal unsprung weight balance.

Key Features:

• Floating rotor design — prevents thermal warping and braking surface cupping under extreme heat
• Unique slot pattern — rapidly expels gas and brake pad debris while minimizing braking noise
• Heat-treated and balanced rotors — every disc is processed before shipment for consistent, reliable performance
• Opposed-piston caliper design — promotes even pad wear and maximizes caliper stiffness
• Aluminum pistons with high-temperature seals and stainless-steel brake pad wear plates as standard
• Stainless-steel braided brake lines — eliminate hose expansion under pressure for a firm, consistent pedal feel
• Machined bridge tube protection grooves — add structural durability to the caliper body
• Designed for easy installation with minimal tools required in most applications

Ksport's proprietary rotor slot design outperforms conventional slot patterns by more efficiently clearing debris and reducing noise. Slotted rotors are best suited for track and performance driving, while cross-drilled rotors run cooler and are the preferred choice for daily-driven vehicles that occasionally see spirited use.

The BKBM010-621SO is engineered to dramatically reduce brake fade and continuously refresh the pad contact surface during braking, making it an ideal upgrade for drivers demanding maximum braking confidence on road or track.