Eibach ERS Helper Spring 3.00in Dia 2.95in Length 46 lbs/in (HELPER300)
The Eibach ERS Helper Spring HELPER300 is built to maintain main-spring position during full suspension droop while preserving the primary spring's rate and travel. With a significantly higher helper-spring rate than typical flat-wire helpers, this model is ideal for heavy-duty coilover setups that require stronger preload control and minimal sag at full extension.
Its flat-wire construction compresses to a compact block height, maximizing usable suspension travel while ensuring the main spring stays properly seated. Each spring is individually tested for accuracy, consistency, and long-term durability - hallmarks of Eibach's ERS program.
Specifications
- Part Number: HELPER300
- Configuration: Single helper spring
- Length: 2.95 in (75.00 mm)
- Diameter: 3.00 in I.D. (76.00 mm I.D.)
- Rate: 46 lbs/in (0.82 kg/mm)
- Block Height: 0.95 in (24.00 mm)
- Travel: 2.00 in (51.00 mm)
- Block Load: 92 lbs (411 N)
- Weight: 0.90 lbs (0.41 kg)
Features
- High-rate flat-wire helper spring for demanding coilover applications
- 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 heavy-duty or high-preload coilover systems
- Verify 3.00in I.D. compatibility with your coilover hardware
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