Product Details

Swift Springs Standard Conventional Springs in 5" OD and 18" length provide maximum stroke for long-travel racing suspension setups. These 5" OD Swift conventional race springs are manufactured in Japan from proprietary H5S.TW high-tensile alloy steel, delivering consistent rate behavior and fatigue resistance through extended free lengths commonly used in dirt track and off-road racing applications.

For over 90 years, Swift Springs has led the industry in precision spring manufacturing. Their 18" conventional springs are designed for applications requiring the most possible usable stroke. All Swift Springs use H5S.TW alloy for superior fatigue life compared to standard silicone chrome steel.

Why Racers Choose Swift Springs Conventional Springs

  • H5S.TW alloy steel provides superior fatigue life and rate consistency
  • 18" free length for maximum stroke in long-travel setups
  • Fewer coils reduce unsprung weight for improved mechanical grip
  • Designed for competitive racing applications
  • Lower tire temperatures through improved weight transfer
  • Swift Springs are made in Japan with precision grinding for even perch seating

Note: Swift Conventional Race Springs are sold individually. Select your desired spring rate from the options above.

Specifications
PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
180-500-080 80 13.3 13.3 1,069
180-500-100 100 13.3 13.3 1,334

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!

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