EIBACH ERS springs

From the prestigious German manufacturer EIbach, we offer you a catalogue of narrow helper springs and main springs for threaded body shock absorbers with narrow springs.

Auxiliary springs are shorter and are used to prevent the main springs (tenders) from loosening in the spring seats when the wheels are completely dropped.

Helpers, unlike conventional springs, have very low elasticity rates and therefore do not affect the suspension characteristics of the vehicle.

Only suitable for mounting with narrow spring on threaded shock absorbers.

To choose the right spring, you must know the length and strength you need based on the calibration of the suspension set and the terrain to be driven on.

How the ERS system works. Initially, the main spring and the secondary spring are compressed simultaneously; the result is a softer initial characteristic (depending on the type of secondary spring, dual-rate or progressive). After the secondary spring has closed, only the main spring is compressed further, thus achieving the desired stiffer characteristic in the final range of the characteristic curve.

Main Spring. The main spring always has a linear characteristic curve. This curve determines the basic characteristic as well as the final ratio range not influenced by the secondary spring. Use without the secondary spring is in principle possible. The main springs are manufactured with an inner diameter of 60 mm and can therefore be used in the most common sports and racing coilover shock absorbers. They are available in 9 different lengths with different stiffness coefficients respectively (see model list).

The correct choice of spring rate and spring length is made based on the available spring travel and the intended use of the racing car. While in rallying, long spring travels with a relatively low spring rate are usually used for traction reasons, in circuit or slalom, short and hard springs are generally used to avoid unwanted oscillations in the body.