Eibach ERS Helper Spring Long 3.00in Dia 4.84in Length 23 lbs/in (HELPER300T)
The Eibach ERS Helper Spring HELPER300T is a long-travel helper spring engineered to keep the main spring properly seated during full suspension droop while preserving the primary spring's rate and performance. With a longer free length and a mid-range helper-spring rate, this model is ideal for coilover systems that require additional travel before reaching block height - common in off-road, road race, drift, and custom suspension applications.
Its flat-wire construction compresses to a compact block height, maximizing usable suspension travel while maintaining consistent preload control. Each spring is individually tested for accuracy, rate consistency, and long-term durability.
Specifications
- Part Number: HELPER300T
- Configuration: Single helper spring
- Length: 4.84 in (123.00 mm)
- Diameter: 3.00 in I.D. (76.00 mm I.D.)
- Rate: 23 lbs/in (0.41 kg/mm)
- Block Height: 1.02 in (26.00 mm)
- Travel: 3.82 in (97.00 mm)
- Block Load: 91 lbs (405 N)
- Weight: 0.88 lbs (0.40 kg)
Features
- Long-travel flat-wire helper spring for extended droop control
- Keeps main spring seated when suspension is fully unloaded
- Minimal block height for maximum usable suspension travel
- Does not interfere with main spring rate or performance
- Each spring is individually tested for accuracy and consistency
- Backed by Eibach's five-year warranty
Notes
- Ideal for coilover systems requiring additional helper-spring travel
- Verify 3.00in I.D. compatibility with your coilover hardware
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