Ksport

Dual Caliper Rear Brake Kit

$3,785.51

SKU: BKBM321-435SO

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

This innovative system utilizes a single 4-piston caliper, intelligently split to operate the foot brake with two pistons and the handbrake with the other two, each functioning on its own independent hydraulic circuit. The kit is designed as a direct bolt-on application, minimizing installation complexity and ensuring a comprehensive upgrade. Key components of this kit include forged, monoblock aluminum calipers, lightweight two-piece slotted or cross-drilled rotors (330mm diameter, 32mm width), and Ksport's SC5 Street Brake Pads, which offer a balance of performance and reduced dust for street use. D.O.T. compliant stainless-steel braided brake lines are also included, improving pedal feel and response by preventing line expansion under pressure. The handbrake system features a polished titanium cylinder and lever for enhanced aesthetics and control. This specific kit is tailored for the Mini Cooper F56 models from 2014-2018, specifically the 5-door S models. Ksport emphasizes that their Big Brake kits are built to order, with production and delivery typically requiring 4-6 weeks. It is important to note that unless explicitly stated otherwise, Ksport USA products are designated for off-road competition use only.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandKsport
Part NumberBKBM321-435SO
CategoryBrakes

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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