Eibach ERS Helper Spring 2.25in Dia 5.91in Length 9 lbs/in (HELPER225T)
The Eibach ERS Helper Spring HELPER225T is designed to maintain main-spring position during full suspension droop without affecting the primary spring rate or travel. Its flat-wire construction allows for a very small block height, maximizing usable suspension travel while ensuring the main spring stays properly seated in dynamic coilover setups.
This longer helper spring - 5.91 inches in free length - provides extended travel capability, making it ideal for coilover systems used in road racing, autocross, drift, off-road, and custom suspension applications. Each spring is individually tested for accuracy, rate consistency, and long-term durability.
Specifications
- Part Number: HELPER225T
- Configuration: Single helper spring
- Length: 5.91 in (150.00 mm)
- Diameter: 2.25 in I.D. (57.00 mm I.D.)
- Rate: 9 lbs/in (0.21 kg/mm)
- Block Height: 0.56 in (14.00 mm)
- Travel: 5.35 in (136.00 mm)
- Block Load: 46 lbs (204 N)
- Weight: 0.33 lbs (0.15 kg)
Features
- Flat-wire helper spring design for maximum travel and minimal block height
- Keeps main spring seated when suspension is fully unloaded
- Does not interfere with main spring rate or performance
- Available for most popular coilover spring diameters
- Each spring is individually tested for accuracy and consistency
- Backed by Eibach's five-year warranty
Notes
- Helper springs maintain spring position; they do not significantly increase overall spring rate
- Verify inner diameter compatibility with your coilover hardware
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