Bump Stop Springs

Bump Springs – are used in conjunction with a primary spring to allow a race car to have a relatively soft 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 dynamic ride height.

  • Free length 2.125″
  • 1.96″ OD
  • Ultra-Lightweight for reduced un-sprung weight with maximum travel
  • Made from only the best High Tensile Chrome Silicone
  • Maintain free length and rate throughout a near infinite operational life
  • Made in the USA

 


Bump Cups and the ST Springs are available individually or in a Combo that includes 2 Bump Cups.
14mm (and/or 1/2) Bump Cups  – Fit 14mm (and/or 1/2) Shock Shaft and Bump Spring Rates 400-2000
5/8 (and/or 16mm) Bump Cups – Fit 5/8 (and/or 16mm) Shock Shaft and Bump Spring Rates 400-2000
345 14mm (and/or 1/2) Bump Cups – Fit 14mm (and/or 1/2) Shock Shaft and Bump Spring Rates 3000 – 7000
345 5/8 (and/or 16mm) Bump Cups – Fit 5/8 (and/or 16mm) Shock Shaft and Bump Spring Rates 3000-7000

New Bump Stop Spring Rates:

ST300, ST700, ST900, ST1100, ST1300, ST1500, ST1700, ST1900, ST2500, ST3500, ST4500, ST6000 & ST7000

Part #RateRecommendationsColorPrice
Bump Cup 14mm (and/or 1/2)Bump Spring Rates 400-2000

N/A

Gun Metal Gray $ 24.99
Bump Cup 345 - 14mm (and/or 1/2)Bump Spring Rates 3000-7000

N/A

Gun Metal Gray $ 24.99
Bump Cup 345 - 5/8 (and/or 16mm)Bump Spring Rates 3000-7000

N/A

Gun Metal Gray $ 24.99
Bump Cup 5/8 (and/or 16mm)Bump Spring Rates 400-2000

N/A

Gun Metal Gray $ 24.99
ST400400

Deflection Table

Gun Metal Gray $ 55.00
ST500500

Deflection Table

Gun Metal Gray $ 55.00

Back Ordered
ST600600

Deflection Table

Gun Metal Gray $ 55.00
ST800800

Deflection Table

Gun Metal Gray $ 55.00
ST10001000

Deflection Table

Gun Metal Gray $ 55.00
ST12001200

Deflection Table

Gun Metal Gray $ 55.00
ST14001400

Deflection Table

Gun Metal Gray $ 55.00
ST16001600

Deflection Table

Gun Metal Gray $ 55.00
ST18001800

Deflection Table

Gun Metal Gray $ 55.00
ST20002000

Deflection Table

Gun Metal Gray $ 55.00
ST30003000

Deflection Table

Gun Metal Gray $ 55.00
ST40004000

Deflection Table

Gun Metal Gray $ 55.00
ST50005000

Deflection Table

Gun Metal Gray $ 55.00