What is the main advantage of an inboard rotor setup?

An inboard rotor setup tucks the rotor and caliper closer to the vehicle's chassis. This helps reduce unsprung weight and can improve aerodynamic efficiency around the wheel assembly, which is beneficial for performance vehicles.

What does the 'vented' design of the rotors do?

Vented rotors have internal passages that allow air to flow through them. This design helps to dissipate heat generated during braking, which is crucial for maintaining consistent stopping power and preventing brake fade under heavy use.

What is typically included in this Wilwood brake kit?

This kit generally includes the FSL4R calipers, the 12.19-inch inboard vented rotors, and the necessary hardware for installation. It's designed to be a comprehensive solution for upgrading your braking system.

Wilwood FSL4R Sprint Brake Kit 140-15815

Name: Wilwood FSL4R Sprint Kit Inboard Vented Rotor
Brand: Wilwood
SKU: wilwood-wilwood-fsl4r-sprint-kit-inboard-vented-rotor-t14-582110
Price: 992.51 USD
Availability: BackOrder

Wilwood FSL4R Sprint Kit Inboard Vented Rotor

$992.51

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Wilwood FSL4R Sprint Kit Inboard Vented RotorBRAKE KIT

Key Features

This kit includes Wilwood FSL4R calipers and inboard vented rotors.
Rotors measure 12.19 inches in diameter and 1.25 inches thick.
The inboard rotor mounting helps reduce unsprung weight.
Vented rotor design aids in heat dissipation during hard braking.
Designed for sprint car and similar lightweight, high-performance applications.
Includes calipers, rotors, and mounting hardware.

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Product Details

If you're building a sprint car or a similar lightweight, high-performance vehicle where every ounce matters and stopping power is critical, this Wilwood FSL4R Sprint Kit is designed to meet those demands. This kit focuses on providing robust braking performance in a package that's optimized for applications where weight and component placement are key considerations. The inboard rotor setup helps keep unsprung weight down and allows for a cleaner wheel and tire assembly.

At the heart of this kit are the 12.19-inch diameter by 1.25-inch thick vented rotors. These rotors are designed to handle the heat generated during intense braking events, helping to maintain consistent stopping power lap after lap. The FSL4R calipers are well-built for this type of application, offering solid clamping force. The inboard mounting means the rotor and caliper assembly are tucked closer to the chassis, which is a common setup in racing to reduce rotational mass and improve aerodynamics around the wheel.

This kit is a comprehensive solution for serious racers looking to optimize their braking system. It includes the calipers, rotors, and necessary hardware to get them installed. When setting up a dynamic braking system like this, it's always a good idea to consult the manufacturer's installation guide for specific details on mounting and brake line connections to ensure optimal performance and safety.