Eibach ERS Platinum 18-Inch Rear Race Spring, 5.00-Inch Outside Diameter, 112 lb/in - PR1800.500.0112

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 PR1800.500.0112 is an individual motorsport spring engineered for racers who need consistent suspension performance and precise tuning control. Designed for rear race applications, this spring delivers a 112 lb/in rate and is built to maintain its dimensions and spring rate within exceptionally tight tolerances through repeated heat cycles, hard cornering, and demanding track use.

Its flat-ground ends provide a parallel tolerance of plus or minus 1 degree, supporting reliable spring seating and predictable suspension behavior. The ERS Platinum construction also allows more travel and deflection than standard racing coil springs, helping teams optimize grip and handling across changing track conditions. High-tensile steel keeps weight low without compromising durability, while the block-resistant design helps prevent loss of spring height over time.

Use the Eibach ERS Platinum spring as part of a properly matched race suspension system. Its motorsport-focused design is suitable for competition vehicles and applications where repeatable rates, stable ride height, and accurate suspension tuning are essential. Confirm compatibility with the vehicle, damper, spring perch, and suspension setup before installation. This product is sold as one individual spring.

Product Specifications and Technical Data

• Brand: Eibach
• Series: ERS Platinum
• Part Number: PR1800.500.0112
• Application: Motorsport rear race spring
• Spring Rate: 112 lb/in
• Outside Diameter: 5.00 inches
• Free Length: 18 inches
• Construction: High-tensile steel with block-resistant design

What's Included

• One Eibach ERS Platinum individual motorsport spring

Fitment: Vehicle-specific fitment data was not provided. Verify spring dimensions, rate, installed height, spring perch compatibility, and suspension requirements for the intended race vehicle before ordering.

Features:

• Consistent Race Performance: Maintains spring dimensions and rates within tight tolerances for reliable handling lap after lap.
• Flat-Ground Ends: Provides a parallel tolerance of plus or minus 1 degree for accurate seating and predictable suspension response.
• Extended Travel Capability: Allows more travel and deflection than standard racing coil springs for greater suspension tuning flexibility.
• Lightweight, Durable Construction: Uses high-tensile steel and a block-resistant design to reduce weight and help prevent loss of spring height.

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