Eibach ERS 70mm ID Linear Tender Spring

Universal Fitment

Part #: 40-70-0030

Overview

The Eibach ERS 70mm ID Linear Tender Spring is a high-quality suspension component designed to enhance ride comfort and handling performance. Crafted for enthusiasts seeking precise suspension tuning, this tender spring works in conjunction with main springs to provide a progressive damping experience. Its innovative design helps improve initial response and ride quality, making it ideal for custom suspension setups, coilover systems, or performance vehicle applications where fine-tuning is desired. Whether you're upgrading your vehicle for street use or track days, this spring offers consistent, reliable performance and durability.

Key Features

This tender spring is engineered with high-grade materials and a linear-rate design to ensure consistent performance under load. Its 70mm inner diameter and 2.87" length make it compatible with a variety of suspension systems. The spring's design intent is to provide a softer initial compression, improving ride comfort and grip during low-speed maneuvers, while maintaining a firm end-rate for stability at higher loads. Its construction supports long-term durability and resistance to fatigue, even under demanding driving conditions.

Construction & Design

Made from high-tensile steel with a protective coating, this spring is built to withstand the stresses of performance driving. Its precise coil geometry ensures uniform load distribution and predictable response, making it a reliable choice for suspension tuning.

Driving Feel & Feedback

The ERS tender spring enhances initial suspension compliance, resulting in a smoother ride over uneven surfaces. It helps improve handling response and driver feedback by supporting better wheel control and reducing harshness during compression.

Installation & Fitment

Designed for easy integration with compatible coilover or spring assembly systems, installation should be performed by qualified technicians familiar with suspension tuning. Fitment verification against vehicle specifications and part compatibility is recommended.

What’s Included

The package includes one Eibach ERS 70mm ID Linear Tender Spring, ready for installation into your suspension setup.