Ksport BKNS090-621CO Floating Rotor Big Brake Kit | 4, 6, or 8 Piston Caliper

The Ksport BKNS090-621CO is a high-performance floating rotor big brake kit engineered to deliver superior stopping power with reduced brake fade and improved thermal management. Available with 4, 6, or 8 piston caliper options, this system is designed for demanding performance applications while remaining straightforward to install with minimal tools required in most applications.

Caliper Design:

• 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. per caliper for reduced unsprung weight
• Opposed piston design improves pad wear consistency and caliper rigidity over OEM setups
• Machined-in protection grooves for bridge tube security
• Aluminum pistons with high-temperature seals for reliable performance under extreme heat
• Stainless-steel brake pad wear plates included as standard

Rotor & Hardware:

• 2-piece floating disc assembly significantly reduces both rotating and unsprung weight
• Floating disc design eliminates thermal stress warping and braking surface cupping caused by extreme heat
• Unique slot design rapidly expels gas and pad debris while minimizing braking noise
• Every rotor is heat treated and balanced prior to shipment for consistent, high-quality performance
• Stainless-steel brake lines prevent hose expansion under pressure for a firm, responsive pedal feel

Rotor Style Guidance:

• Cross-drilled rotors run cooler and are recommended for daily-driven vehicles
• Slotted rotors are recommended for vehicles with frequent track use

The Ksport big brake system continuously cools and refreshes the brake pad surface during braking, keeping performance consistent lap after lap or stop after stop. This kit represents a complete upgrade over OEM braking systems for drivers seeking maximum performance, confidence, and control.