Ksport BKSB091-621CO Floating Brake Rotor Big Brake Kit or Piston Caliper Options - with 4 6 8

The Ksport BKSB091-621CO is a high-performance floating rotor big brake kit engineered for drivers who demand serious stopping power. Available with 4, 6, or 8 piston caliper options, this system delivers significantly enhanced braking performance over stock OEM setups while reducing brake fade under sustained heavy use.

2-Piece Floating Disc Assembly:

Ksport's 2-piece floating rotor design separates the hat from the disc, reducing both rotating and unsprung weight. The floating disc interface absorbs thermal expansion caused by extreme heat, preventing disc warping and eliminating cupping of the braking surface — a common failure point on solid one-piece rotors during track or performance driving.

Rotor Design & Surface Technology:

• Proprietary slot design expels gas and pad debris faster than conventional slot patterns
• Unique slotting geometry significantly reduces braking noise
• Every rotor is heat treated and balanced prior to shipment for consistent, reliable performance
• Cross-drilled rotors recommended for daily-driven vehicles — run cooler under normal conditions
• Slotted rotors recommended for vehicles with frequent track or performance use

Caliper Construction:

• Extreme lightweight one-piece opposed piston caliper in differential bore configuration
• CNC machined from aircraft-grade billet aluminum
• Weighs just over 5 lbs. each for reduced unsprung weight
• Machined-in protection grooves for bridge tube security
• Aluminum pistons for lightweight performance
• High-temperature seals for fade resistance under extreme heat
• Stainless-steel brake pad wear plates standard on every caliper
• Opposed piston design improves pad wear evenness and increases caliper rigidity vs. OEM sliding calipers

Brake Lines:

• Stainless-steel braided brake lines included — resist expansion under pressure for a firm, consistent pedal feel

Designed for straightforward installation with minimal tools required in most applications, the Ksport BKSB091-621CO big brake kit is an ideal upgrade for performance street, track day, and competition use where consistent, fade-resistant braking is critical.