SPL Parts FKS Series Front Spherical Caster Rod Bushing Set

2015–2016 BMW 228i (F22/F23)

Part #: SPL CRBN F3IX

Overview

The SPL Parts FKS Series Front Spherical Caster Rod Bushing Set is designed to enhance the handling and suspension performance of your BMW 228i. Specifically engineered for the 2015 and 2016 models, these high-performance bushings replace the factory rubber components with precision-articulating spherical bearings. This upgrade is ideal for enthusiasts seeking improved steering response, reduced bushing deflection, and more consistent suspension geometry under load.

Whether you're a spirited driver, track enthusiast, or someone looking to improve daily driving feedback, these bushings help you achieve sharper handling and more direct feedback from your vehicle. By eliminating the flex inherent in stock rubber bushings, you'll notice more precise steering and better control during aggressive maneuvers, making your driving experience more engaging and confident.

Key Features

The SPL Parts FKS Series Bushings incorporate advanced materials and engineering to deliver maximum performance and durability. Crafted from high-quality 6061-T6 aluminum, these bushings are lightweight yet incredibly strong, ensuring long-lasting performance even under demanding driving conditions. The core of each bushing features massive 1" FK Racing spherical bearings with self-lubricating Teflon liners, which provide low friction articulation and reduce wear over time.

• Replace stock flexible rubber bushings with low-friction spherical bearings for improved suspension response.
• Constructed from durable 6061-T6 aluminum for lightweight strength and corrosion resistance.
• Massive 1" FK Racing spherical bearings with self-lubricating Teflon liners ensure smooth articulation and longevity.
• Designed to maintain optimal suspension geometry under load, reducing bushing deflection and improving handling feedback.
• Precision CNC-machined for perfect fitment and consistent performance.
• Ideal for street, spirited driving, and track use where precise suspension tuning is desired.

Construction & Design

The SPL Parts bushings are meticulously engineered with a focus on durability and performance. The use of 6061-T6 aluminum ensures a lightweight yet robust housing that resists corrosion and withstands the rigors of aggressive driving. The spherical bearings are CNC-machined to exact specifications, providing a precise fit and smooth articulation. The self-lubricating Teflon liners inside the bearings reduce maintenance needs and prevent metal-on-metal wear, ensuring consistent performance over time.

This design eliminates the flex and deflection associated with rubber bushings, allowing your suspension to respond more directly to driver inputs. The spherical bearings also help maintain proper caster and camber angles, which are critical for optimal handling and tire contact patch during cornering and braking.

Installation & Fitment

The SPL Parts FKS Series Bushings are designed as direct bolt-on replacements for the factory caster rod bushings on the specified BMW models. Installation typically requires basic hand tools and some suspension knowledge. No cutting, drilling, or complex modifications are necessary, making this an accessible upgrade for most DIY enthusiasts or professional mechanics. Proper torque specifications should be followed during installation to ensure optimal performance and safety.

• Direct bolt-on replacement for factory bushings.
• No cutting or drilling required.
• Installation can be completed with standard hand tools.
• Recommended to have alignment checked after installation for optimal suspension geometry.

What's Included

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

Ideal For

This upgrade is perfect for BMW enthusiasts who want to improve their vehicle's handling, steering response, and overall suspension performance. It is well-suited for street drivers, autocross competitors, and track day participants seeking a more precise and engaging driving experience. The robust construction and high-quality materials ensure long-lasting performance under spirited driving conditions.