Spring Rubber 5.0in OD 90 Durometer Blue

Eibach Spring Rubber – 5.0in OD, 90 Durometer (Blue) – Part #SR.500.0090 Fine-tune your suspension’s performance and rate characteristics with the Eibach Spring Rubber 90 Durometer, designed for precision spring tuning and reliable trackside adjustments. Built for 5.0-inch outside diameter coil springs, this high-durometer blue spring rubber lets you quickly modify spring rate and add progressive characteristics to your linear race setup. Manufactured from durable polyurethane, Eibach spring rubbers are engineered to withstand repeated compression cycles without degrading or distorting. Perfect for circle track, drag, off-road, or autocross applications, these inserts let you dial in traction, weight transfer, and body control with professional precision. Key Features: Progressive Spring Rate: Adds progressive resistance for optimized handling and grip. Durable Construction: 90-durometer polyurethane withstands heavy loads and repeated use. Fitment: Designed for 5.0" outside diameter coil springs. Height Adjustment: Adds approximately 1.5" of solid height to your spring. Simple Installation: Slides directly between coils for quick trackside or garage tuning. Made in the USA: Precision-engineered to Eibach’s race-proven standards. Application Notes: Compatible with Eibach ERS and other 5.0" OD linear race springs. Sold individually. Available in multiple durometers (500–900 range) for fine-tuned rate control. Why Buy from Fenix Motorsports At Fenix Motorsports, we run what we sell—from off-road testing to track performance. Every Eibach component we offer is proven in real-world conditions and backed by expert support from enthusiasts who understand performance. Upgrade with confidence—Eibach + Fenix Motorsports = race-proven reliability.