SPL Parts Front Spherical Caster Rod Bushing Set

2017–2021 BMW M240i xDrive (F22/F23)

Part #: SPL CRBN F3IX

Overview

The SPL Parts FKS Series Front Caster Rod Bushings (CRBN) are designed to enhance the handling and steering precision of your BMW M240i xDrive. Specifically engineered for the 2017 to 2021 models, these bushings replace the factory rubber components with high-performance spherical bearings, delivering a significant upgrade in suspension responsiveness. Whether you're a spirited street driver, a track enthusiast, or someone seeking improved stability during aggressive driving, these bushings are an excellent choice to optimize your vehicle's suspension geometry.

By replacing the stock flexible bushings with low-friction, articulating spherical bearings, you'll experience reduced bushing deflection and friction. This translates into more direct steering feedback, improved braking stability, and enhanced overall handling. The result is a more connected driving experience, with sharper turn-in and better control under load, making your BMW feel more agile and predictable on the road or track.

Key Features

The SPL Parts CRBN bushings incorporate several advanced features to ensure maximum performance and durability:

• Constructed with massive 1" FK Racing Bearings featuring self-lubricating Teflon liners, these bushings minimize friction and wear, ensuring long-lasting performance even under demanding conditions.
• Made from high-quality 6061-T6 aluminum, the bearing housings are lightweight yet robust, providing excellent strength without adding unnecessary weight to your suspension components.
• The spherical design eliminates bushing deflection, maintaining optimal suspension geometry during aggressive driving, which improves handling feedback and stability.
• Precision CNC-machined for a perfect fit, these bushings are engineered to seamlessly replace the OEM rubber units without modifications.
• Designed to withstand the rigors of high-performance driving, the components resist corrosion and maintain structural integrity over time.
• Enhanced articulation allows for better alignment control, which is especially beneficial during cornering and under load.
• Installation is straightforward for those familiar with suspension upgrades, with all necessary hardware included.

Construction & Design

The SPL Parts CRBN bushings feature a high-strength construction that combines durability with precision engineering. The use of 6061-T6 aluminum ensures a lightweight yet sturdy housing for the FK Racing spherical bearings. The bearings themselves are equipped with self-lubricating Teflon liners, reducing maintenance needs and preventing metal-on-metal wear. The CNC-machined components guarantee a precise fit, ensuring that the spherical bearings operate smoothly within their housings. This design not only improves handling but also enhances the longevity of the bushings, making them suitable for both daily driving and track use.

Installation & Fitment

The SPL Parts CRBN bushings are designed as direct replacements for the OEM caster rod bushings on the specified BMW models. Installation typically requires basic suspension tools and knowledge; however, no modifications such as cutting or drilling are necessary. The bushings bolt directly into the existing suspension points, making for a relatively straightforward upgrade that can be completed with standard hand tools. For optimal results, professional installation is recommended to ensure proper alignment and torque specifications are met.

• Direct bolt-on replacement for factory bushings
• No cutting, drilling, or complex modifications required
• All necessary hardware included for installation

What's Included

• Set of front spherical caster rod bushings with FK Racing spherical bearings
• 6061-T6 aluminum bearing housings
• All mounting hardware and fasteners
• Installation instructions

Ideal For

• BMW M240i xDrive owners seeking improved handling and steering response
• Performance enthusiasts looking to reduce suspension flex and bushing deflection
• Track day drivers aiming for more precise suspension geometry under load
• Street drivers wanting a more connected and responsive driving experience