Ksport BKSB190-621SO Floating Rotor Big Brake Kit | 4, 6, or 8 Piston Caliper

The Ksport BKSB190-621SO is a high-performance floating rotor big brake kit engineered to deliver superior stopping power and dramatically reduce brake fade under demanding driving conditions. Available with 4, 6, or 8 piston caliper configurations, this kit is designed for enthusiasts who demand consistent, fade-resistant braking whether on the street or track.

Caliper Construction:

• Extreme lightweight one-piece CNC-machined caliper crafted from aircraft-quality billet aluminum
• Differential bore configuration for optimized pad contact and even wear
• Weighs just over 5 lbs. each for significant unsprung weight reduction
• Machined-in protection grooves for bridge tube integrity
• Opposed piston design improves pad wear and caliper rigidity over OEM
• Aluminum pistons with high-temperature seals
• Stainless-steel brake pad wear plates included as standard

Rotor Design:

• 2-piece floating disc assembly minimizes both rotating and unsprung weight
• Floating disc design prevents thermal stress warping and braking surface cupping under extreme heat
• Unique slot design expels gas and pad debris faster than conventional slot patterns while reducing braking noise
• Every rotor is heat treated and balanced before shipment for peak performance
• Cross-drilled rotors run cooler — ideal for daily-driven vehicles
• Slotted rotors recommended for track-focused or high-performance driving applications

Brake Lines & System Features:

• Stainless-steel braided brake lines prevent expansion under pressure for a firm, consistent pedal feel
• Continuously cools and refreshes brake pad surface during braking to combat fade
• Designed for straightforward installation with minimal tools required in most applications

The Ksport BKSB190-621SO big brake kit brings together advanced rotor technology, lightweight billet construction, and flexible caliper configurations to deliver the ultimate in braking performance. Whether configured for street use or aggressive track days, this system provides the confidence of race-proven stopping power.