Bump Spring 2IN O.D. x 2.25in 4000lb

The Bump Spring 2IN O.D. x 2.25in 4000lb by Eibach is a precision suspension component designed for vehicle builders and enthusiasts who require controlled compression travel and improved ride quality. Bump springs, also known as helper springs or progression springs, are installed atop primary suspension springs to manage bottoming resistance and mitigate harsh impacts when the chassis compresses near its limits.

This Eibach bump spring features a 2-inch outer diameter and a spring rate of 4000 lbs/in, delivering progressive spring force that activates after initial compression, which helps avoid unwanted stiffness during everyday handling. Its 2.25-inch height allows for installation in tight suspension spaces typical of modern strut housings and coilover systems. The robust design ensures durability under repeated compression cycles and heavy cornering loads.

Ideal for track-focused builds, lowered street vehicles, and suspension systems that require additional bottoming protection, this bump spring provides the secondary support necessary to maintain compliance during normal driving while safeguarding components during extreme compression events. Eibach's manufacturing precision guarantees consistent spring rate and minimal variation, which is critical for balanced front-to-rear suspension tuning and predictable handling characteristics across various driving conditions.