Eibach ER Platinum Rear Motorsport Spring PR1800.500.0100, 18-Inch Length, 5-Inch Outside Diameter, 100 lb/in Rate

Renowned for our extensive catalog of over 1,500 precision engineered race springs. Eibach race springs offer unparalled customization and performance optimization across a wide spectrum of racing applications. From shocks to pull-bars we offer a wide range of springs solutions to fine tune the handling dynamics of your race car. Individual Motorsport Spring

• The Eibach ER Platinum Springs will Maintain Their Dimensions and Rates to Incredibly Tight Tolerances, Lap after Lap, Race after Race
• Flat-Ground End Configuration with Parallel Tolerance to +/-1 Degree
• More Travel / Deflection than Standard Racing Coil Springs
• Ultra Light-Weight Using High Tensile Steel
• Block Resistant - No Loss in Spring Height!

The Eibach ER Platinum Rear Motorsport Spring PR1800.500.0100 is designed for racing applications that demand consistent suspension performance, precise setup control, and reliable spring behavior under repeated high-load conditions. As part of Eibach’s extensive range of precision-engineered race springs, this individual rear spring helps fine-tune handling dynamics across a wide variety of competition vehicles and suspension configurations.

Manufactured from high-tensile steel, the Eibach ER Platinum spring combines lightweight construction with excellent durability. Its flat-ground end configuration is produced to maintain parallel alignment within tight tolerances, supporting consistent seating and predictable suspension response. The spring is also engineered to provide more travel and deflection than standard racing coil springs, helping optimize grip and chassis balance during demanding track use.

Lap after lap and race after race, the Eibach PR1800.500.0100 is built to maintain its intended dimensions and 100 lb/in spring rate with exceptional consistency. Its block-resistant design helps prevent loss of spring height, preserving setup accuracy over time. This rear motorsport spring is suitable for race teams, builders, and enthusiasts seeking dependable spring-rate control and repeatable suspension tuning. Professional installation and proper spring selection are recommended to match the vehicle, damper, and intended racing application.

What's Included: One Eibach ER Platinum rear motorsport spring. This product is an individual spring and does not include installation hardware, spring seats, or other suspension components.

Features:

• Consistent Spring Rate: Maintains the specified 100 lb/in rate within exceptionally tight tolerances for repeatable handling performance.
• Precision End Configuration: Flat-ground ends with parallel alignment support proper seating and consistent suspension operation.
• Increased Deflection: Provides more travel and deflection than standard racing coil springs for improved suspension tuning flexibility.
• Lightweight, Block-Resistant Construction: High-tensile steel reduces weight, while the block-resistant design helps preserve spring height during repeated racing use.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: false
Units Per Sku: 1