ERS Linear Main Spring Dia. 225 in Len: 500 in Rate: 120000 lbs in ERS Main Metric Dia. 275 in Len: 886 in Rate: 28500 lbs in Eibach ERS Linear Main Spring 0600.225.0575 EIBACH Aftermarket Eibach TENDER LINEAR SPRING M3 () All Makes All Models Parts E102500325 Eibach ERS Series Standard Eibach TENDER LINEAR SPRING M3 (). Eibach ERS Main Metric Linear Tender Single Coil Spring Applicable for various racing and high performance applications Part #: 60 70 0045 Overview The Eibach ERS Main Metric Linear Tender Single Coil Spring is designed for enthusiasts and professional racers seeking precise and consistent suspension performance. Built with a focus on achieving the most linear spring characteristics, this spring system provides predictable handling and improved ride quality under demanding conditions. Whether you're tuning your race car or upgrading your high performance street vehicle, this coil spring offers the reliability and quality you expect from Eibach. Engineered to deliver a softer initial rate when paired with a main spring, the ERS line helps optimize suspension response, ensuring better control and stability during spirited driving or competitive racing. Its manufacturing process emphasizes repeatability and tight tolerances, making it an ideal choice for those who demand consistency and durability in their suspension components. Key Features The Eibach ERS Main Metric Linear Tender Single Coil Spring incorporates several advanced features to enhance your vehicle's suspension system: Manufactured in series production with high precision machining to ensure uniformity and repeatability across every spring. Designed to provide a linear spring rate of 257 lbs in, offering predictable and smooth suspension behavior. Constructed with high quality materials to withstand rigorous racing conditions and maintain performance over time. Optimized for use in racing applications where precise spring rates are critical for handling and stability. Features a softer initial rate when paired with a main spring, improving ride comfort and response during initial compression. Available in a range of lengths and rates to suit various vehicle setups and tuning preferences. Manufactured by Eibach, a globally recognized leader in suspension components with decades of experience in motorsport and performance tuning. Designed to work seamlessly with Eibach's comprehensive line of race springs and suspension systems. Built to meet the highest standards of quality, ensuring longevity and consistent performance in competitive environments. Construction & Design The Eibach ERS Main Metric Linear Tender Spring is crafted from premium steel alloys that provide excellent tensile strength and fatigue resistance. Its precise manufacturing process ensures a consistent spring rate and minimal manufacturing tolerances, which are crucial for high performance tuning. The spring features a linear rate profile, meaning the force required to compress the spring increases proportionally with displacement, resulting in predictable handling characteristics. The design emphasizes durability and stability, with a finish that resists corrosion and environmental wear. Its compact and lightweight construction allows for easy installation and integration into existing suspension setups. The spring's geometry is optimized for racing applications, providing a balance between compliance and control, which helps improve tire contact and overall vehicle handling. Installation & Fitment The Eibach ERS Main Metric Linear Tender Spring is designed as a bolt in upgrade for compatible racing and high performance vehicles. Installation typically involves replacing existing springs with the ERS spring, and no additional modifications or tuning are usually required. However, it is recommended to verify compatibility with your specific vehicle and suspension setup before installation. Proper spring rates and lengths should be selected based on your vehicle's weight, handling goals, and racing requirements. For optimal performance, professional installation and alignment are advised to ensure the suspension geometry remains within optimal parameters. What's Included Single coil spring with the specified linear rate of 257 lbs in High quality manufacturing finish for durability and corrosion resistance Installation instructions (if provided by manufacturer) Ideal For Race car builders and motorsport enthusiasts seeking precise suspension tuning High performance street vehicles used for spirited driving or track days Suspension tuners aiming for predictable and consistent handling characteristics Drivers requiring a softer initial spring rate for improved ride comfort during initial compression