Eibach Spring Rubber – 2.5in ID, 90 Durometer (Blue) – Part #SR.250.0090

Upgrade your coilover or race spring setup with the Eibach 90 Durometer Spring Rubber, engineered to deliver precise rate control and professional-grade performance tuning. Designed for 2.5-inch inside diameter coil springs, this high-durometer blue polyurethane insert provides a firm rate increase—perfect for maximizing chassis stability and cornering performance under load.

The 90-durometer compound offers exceptional resistance to compression and deformation, making it ideal for track, drag, or off-road vehicles where consistent suspension behavior is critical. Each insert adds approximately 0.75 inches of solid height to your spring, helping fine-tune ride height, preload, and rate progression in seconds.

Key Features:

• Firm Rate Adjustment: Adds stiffness for improved balance and cornering response.

• Durable Polyurethane Material: 90-durometer composition resists wear, compression, and heat.

• Precision Fitment: Designed for 2.5" inner diameter coil springs.

• Height Increase: Adds ~0.75" of solid height for tuning preload and travel.

• Quick Installation: Easily slips between coils—no tools required.

• Made in the USA: Built to Eibach’s strict motorsport-grade standards.

Application Notes:
Ideal for coilover-equipped track, off-road, and autocross vehicles. Sold individually. Available in multiple durometers (50–90) for complete spring rate control.

Why Buy from Fenix Motorsports
At Fenix Motorsports, we live and breathe performance. Every Eibach component we sell is tested in real-world conditions for precision, durability, and reliability. From track tuning to desert racing, we help enthusiasts achieve winning setups backed by expert support and same-day fulfillment.