Product Details

Swift Springs Coilover Helper Springs in 25mm (1") ID and 6" length prevent your main coilover spring from dismounting the perch during droop travel, without adding meaningful spring rate to the stack. The 6" free length provides additional droop coverage for setups with longer shock travel, keeping the spring securely seated under negative or zero load conditions.

Swift helper springs are precision-engineered to have minimal effect on your main spring rate. Essential for coilover setups where preloading creates ride height issues or the spring comes loose from the perch during full extension.

Why Use Swift Springs Helper Springs

  • Prevents spring dismount during droop travel without affecting main spring rate
  • 6" length for setups with longer shock travel
  • Compact 25mm ID for small-bore coilover applications
  • Eliminates spring rattle and noise at full droop
  • Compatible with Swift metric and standard coilover springs
  • Made in Japan from high-quality spring steel

Note: Swift Helper Springs are sold in pairs (set of 2).

Specifications
Part # Spring Rate Free Length Stroke FCH CW
kgf/mm lbs/inch mm inch inch lbs
H025-152-050 0.9 50 152 4.2 1.8 214

Reviews / Q&A

4.6
Rated 4.6 out of 5 stars
Based on 8 reviews
100%would recommend these products
8 reviews
  • DS
    Dan S.
    Verified Buyer
    Reviewing
    Swift Springs Metric Coilover Springs - ID: 60mm / Length: 8"
    Rated 5 out of 5 stars
    Great springs

    Swift makes great springs. I haven't put these in yet, running different springs now.

    It's a matter of trial and error to get the car balanced.

    The picture is what is in the car now. The helpers are too soft so I bought assist springs as well.

  • G
    Gabby
    Flag of United States
    Verified Buyer
    Reviewing
    Swift Springs Metric Coilover Springs - ID: 65mm / Length: 4"
    Rated 5 out of 5 stars
    Always a customer

    This is my second set of springs from you guys. My car rides exactly how I want it to and lets me get the ride bight I’ve been trying to achieve. I’ll be a customer for as long as I’m modifying cars!

    S Profile picture for Springrates
    Springrates
    3 years ago

    Thanks so much, Gabby! We're thrilled you love them. You can't go wrong with Swift Springs!

  • AS
    Andrew S.
    Flag of United States
    Verified Buyer
    Reviewing
    Swift Springs Coilover Helper Springs (Flat Wire) - ID: 70mm (2.75")
    Rated 4 out of 5 stars
    Good but just one thing

    Very happy with my purchase of the BC racing BR coilovers. They compliment my car and driving style.

  • IM
    Ian M.
    Flag of United States
    Verified Buyer
    Reviewing
    Swift Springs Metric Coilover Springs - ID: 70mm / Length: 6"
    Rated 5 out of 5 stars
    Swift with springs

    Excellent customer service and product. Highly recommend purchasing from this company. Just had my first autocross with the new springs and they performed excellently. Quite happy.

    S Profile picture for Springrates
    Springrates
    3 years ago

    Thanks so much, Ian! Send us some photos of your racing too!

  • T
    Timothy
    Flag of United States
    Verified Buyer
    Reviewing
    Swift Springs Metric Coilover Springs - ID: 70mm / Length: 6"
    Rated 5 out of 5 stars
    As what I expected!!

    Great springs for the price! Made the car feel much more in tuned with the road!

Go