Product Details

Swift Springs Coilover Assist Springs in 64mm (2.5") ID provide a dynamic step-linear rate that fine-tunes rebound travel and prevents inside wheel lift during hard cornering. Unlike helper springs that have minimal rate contribution, Swift assist springs use a heavier rate to actively manage suspension behavior during droop. Every Swift assist spring compresses to the same height regardless of rate, allowing drivers to swap between rates without resetting the coilover perch or changing ride height. This makes assist springs a powerful tuning tool for dialing in corner-entry behavior, reducing inside wheel lift, and optimizing weight transfer in competitive applications.

Swift Assist Spring Advantages

  • Dynamic step-linear rate for fine-tuning rebound and droop behavior
  • All rates compress to the same height, eliminating ride height changes during rate swaps
  • Reduces inside wheel lift during hard cornering for improved traction
  • Heavier rates than helper springs for active suspension tuning
  • Compatible with Swift metric and standard coilover springs
  • Swift Springs are made in Japan from precision spring steel

Note: Swift Assist Springs are sold in pairs (set of 2). Select your desired spring rate from the options above.

Part # Spring Rate Free Length Stroke FCH CW
kgf/mm lbs/inch inch inch inch lbs
A65-102-650P 5.3 / 11.6 300 / 650 4.0 2.0 2.0 1069

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