Eibach ERS Platinum Rear Racing Spring, 13 in. Length, 5.00 in. Outside Diameter, Part PR1300.500.0125

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 ERS Platinum Rear Racing Spring is an individual motorsport spring engineered for precise suspension tuning across a wide range of racing applications. Designed for demanding track use, this spring helps race teams and performance drivers optimize handling dynamics by delivering consistent spring behavior lap after lap. Its high-tensile steel construction provides a strong balance of durability, performance, and reduced weight.

Each Eibach ER Platinum Spring is manufactured to maintain its dimensions and spring rate within exceptionally tight tolerances. The flat-ground end configuration is designed for accurate seating and parallel alignment, supporting predictable suspension operation. Compared with standard racing coil springs, the ERS design provides increased travel and deflection for improved control through changing track conditions and high-load cornering.

Block-resistant construction helps prevent permanent loss of spring height, preserving suspension setup consistency over repeated racing sessions. The spring is supplied as an individual rear motorsport spring and is suited for applications requiring a 13-inch spring length and 5.00-inch outside diameter. Confirm spring rate, installed height, and vehicle-specific fitment requirements before installation. This Eibach component is intended for performance and competition use; no specific vehicle fitment data was provided.

Product Specifications and Technical Data

• Brand: Eibach
• Product Line: ERS Platinum
• Part Number: PR1300.500.0125
• Application: Rear racing suspension spring
• Spring Length: 13 inches
• Outside Diameter: 5.00 inches
• End Configuration: Flat-ground ends
• Material: High-tensile steel

What's Included

• One Eibach ERS Platinum rear racing spring

Features:

• Consistent Spring Rate: Maintains spring dimensions and rates within tight tolerances for repeatable handling performance lap after lap.
• Flat-Ground End Design: Provides a precise spring seating surface with parallel tolerance of plus or minus 1 degree.
• Increased Suspension Travel: Offers more travel and deflection than standard racing coil springs for improved suspension control.
• Lightweight, Block-Resistant Construction: Uses high-tensile steel to reduce weight while resisting permanent loss of spring height.

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