Eibach ERS 2.50 in. ID Linear Tender Spring (0225.250.XXXX) Spring Rate:300 lbs/in Easy to install with compatible

Easy to install with compatible BMW control arms

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2008 BMW 1 Series 128i 135i Coupe (E82)

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Eibach ERS 2.50 in. ID Linear Tender Spring (0225.250.XXXX) Spring Rate:300 lbs/in Easy to install with compatibleLinear Tender Spring by Eibach The ERS systems relies on a Main and Tender spring concept that provides a softer initial rate when both springs are compressed together, then delivers the desired firmer ending rate once the tender spring closes completely. The Main spring has a linear rate characteristic and determines the final rate of the system. The Tender springs are available in a variety of linear rate as well as progressive rate characteristics