Ksport BKSB090-621SO Floating Rotor Big Brake Kit Piston Caliper - 4/6/8

The Ksport BKSB090-621SO is a premium big brake kit engineered to deliver maximum stopping power with significantly reduced brake fade. Designed with advanced brake technology, this kit continuously cools and refreshes the brake pad surface during braking, making it ideal for both spirited street driving and track use. Installation is straightforward and requires minimal tools in most applications.

Caliper Design & Construction:

• Available in 4, 6, or 8 piston caliper configurations to suit your performance needs
• Extreme lightweight one-piece caliper in a differential bore configuration
• CNC machined from aircraft-grade billet aluminum; weighs just over 5 lbs. each
• Machined-in protection grooves for bridge tube integrity
• Aluminum pistons with high-temperature seals for reliable performance under extreme heat
• Stainless-steel brake pad wear plates included as standard on every caliper
• Opposed piston caliper design improves pad wear and caliper rigidity over OEM
• Stainless-steel brake lines resist expansion under pressure for consistent pedal feel

Rotor Design & Technology:

• 2-piece disc assembly reduces 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 designs while greatly reducing brake noise
• Every rotor is heat treated and balanced before shipment for peak performance consistency
• Cross-drilled rotors run cooler — recommended for daily-driven vehicles
• Slotted rotors provide enhanced bite and durability — recommended for track or performance use

The Ksport BKSB090-621SO big brake kit is a complete, high-performance braking upgrade that delivers superior fade resistance, improved pad life, and consistent stopping power whether you're on the street or the track.