Bump Springs

Bump Springs are used in conjunction with a primary spring to allow a race car to have a relatively soft / compliant initial spring rate to get down to the desired optimum ride height and then pick up the rate of the bump spring to achieve a constant / optimum dynamic ride height.

Circle Track Racing Suspension Components

Key Benefits of Bump Springs

  • More usable deflection
  • 2% rate linearity tolerance from 20% to 60% of deflection
  • 4% rate linearity tolerance from 61% to 80% of deflection
  • Designed to fit standard hardware
  • Maintain free length and rate throughout a near infinite operational life
20BS1800 Bump Spring


Basic Specifications Applications
    • Free length range: 2” to 2.4”
    • Spring rates: 400#/in to 5000#/in
    • Material: High tensile chrome silicone
    • Finish: Double shot-peened; no powder coat
    • Catalog: Page 24
  • Motorsports:
    • Circle Track Racing