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Conventional Suspension Springs

Coil Suspension Springs

Conventional Springs are high-performance, aftermarket suspension springs primarily used in motorsports and motor racing. The OD (outer diameter) size and free length, along with Hyperco’s Dynamic Travel Response™ spring design, allow for optimization of the total vehicle performance on many Circle Track vehicles and applications.

Unlike Coil-Over Springs that are available in a multitude of free lengths, Conventional Springs are limited in their free length offerings, often as a result of the sanctioning bodies and rules. The Engineers at Hyperco decided to analyze the dynamic characteristics essential to Conventional Spring performance. That data resulted in the development of the Dynamic Travel Response spring design concept.

Working within the limitations and rules, the Dynamic Travel Response design allows all springs to exceed the performance requirements for travel and rate linearity, and is still designed with significantly less physical weight.

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Key Benefits of Conventional Springs

  • More usable deflection
  • Less weight than standard suspension springs
  • 2% rate linearity tolerance from 20% to 60% of deflection
  • 4% rate linearity tolerance from 61% to 80% of deflection
  • Designed to fit all standard hardware
  • Maintain free length and rate throughout a near-infinite operational life
  • Lifetime warranty

For more warranty information, visit out lifetime warranty information page.

Lifetime Warranty Information



  • Free length range: 5” to 20”
  • Spring rates: 80#/in to 500#/in
  • Material: High tensile chrome silicone
  • Finish: Hyperco dark blue powder coat


  • Rear Suspension Setup for Circle Track Racing
  • Street Stock
  • Hobby Stock
  • Dirt Modified Racing
  • All Classes Requiring the use of “Big Springs”

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