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Ksport BKBM030-435CO DualComp Big Brake Kit Dual Caliper 4-Piston with Floating Disc

(BMW 328i 1999-2000, M3 1999, 2001-05, 325i 2001-05, 320i 2001-05, 325Ci 2001-05, 318ti 1999, 323i 1999-2001, 318i 1999, 318is 1999, 323Ci 2000 + 4 more models)

Part of: Ksport DualComp Big Brake Kit 4-Piston Caliper

Other options in this family: Ksport BKAC030-434CO Ksport BKAC030-434SO Ksport BKAC030-444CO Ksport BKAC030-444SO Ksport BKAC040-434CO

Manufacturer

Picture for manufacturer Ksport

Part Number

BKBM030-435CO
7 reviews
Sale Price

$2,743.13

Estimated ship date Saturday, November 28

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Product Details

The Ksport BKBM030-435CO DualComp Big Brake Kit is a complete dual-caliper braking solution engineered for drivers who demand independent control over their foot brake and handbrake systems. Ksport's innovative DualComp design integrates both functions into a single, compact 4-piston caliper — two pistons dedicated to the hydraulic foot brake and two pistons dedicated to the handbrake — each operating on its own independent hydraulic circuit.

Key Features:

  • 4-Piston Single Caliper Design: Dual-function caliper with 2 pistons for the foot brake and 2 pistons for the handbrake, operating independently
  • Independent Hydraulic Systems: Foot brake and handbrake circuits are completely separate for reliable, predictable performance
  • Floating Brake Disc: Reduces heat transfer, minimizes warping, and improves braking consistency under demanding conditions
  • Complete Bolt-On Kit: Includes everything needed for a straightforward installation with no fabrication required
  • High-Performance Brake Pads Included: Ready-to-install pads matched to the caliper and rotor specifications
  • All Required Hardware Included: Mounting brackets, fasteners, and ancillary components supplied in the kit

The Ksport DualComp Big Brake Kit is ideal for performance driving, motorsport, and competition applications where a combined foot brake and handbrake solution in a single caliper assembly is required. As a complete kit, it includes the 4-piston calipers, floating brake disc, brake pads, and all installation hardware — making it a true bolt-on upgrade for enhanced stopping power and dual-system braking control.

Products specifications

Fits

BMW 328i 1999-2000, M3 1999, 2001-05, 325i 2001-05, 320i 2001-05, 325Ci 2001-05, 318ti 1999, 323i 1999-2001, 318i 1999, 318is 1999, 323Ci 2000, 328is 1999, 323is 1999, 328Ci 2000, 323ti 1999-2000

Caliper Slides Included

Yes

Rotor Style

Drilled

Rotor Type

Fixed

Rotor Width mm

32

Surface Type

X Drilled

Subject to CARB? Yes/No

No

Mounting Bracket Included

Yes

Rotor Outside Diameter

13

Caliper Color

Orange

Caliper Inlet Port Diameter

M10 x 1

Pad Shims Included

No

Rotor Diamater (mm)

330

Caliper Piston Material

Aluminum

Disc Brake Rotor Construction

Vented

Caliper Type

4 Piston

Position

Rear

Rotor Diamater (in)

13

Color

Orange

Grade Type

Performance

Friction Material Composition

Ceramic

Anti-Rattle Spring Included

Yes

Caliper Casting Material

Aluminum

Ksport Product Sub-Category

Dualcomp Big Brake Kit

Caliper Piston Quantity

4

Ksport Product Category

Big Brake Kits

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I've been looking for the rear hatchback lock for a 94 Lumina APV for a long time. I told them what I wanted in this website found it immediately. I really appreciate how easy it is to use this service.

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