Bump Stop Springs

Using a spring in place of the conventional bump stop results in having a linear rate which helps control the amount of deflection as well as providing for better . Springs are easy to test and understand. The spring rate determines how hard you want to hit the stop and how quickly. Simple calculations yield how much spring deflection is needed to provide the additional load balance to your chassis. Each ST series spring can be purchased alone or with two of the Landrum Performance bump-cups. The springs are made from high tensile material and are powder coated. The cups are hard anodized to prevent the bump spring from wearing the cup.


Bump Cups and the ST Springs are available individually or in a Combo that includes 2 Bump Cups.
14mm Bump Cups – Fit 14mm Shock Shaft and Bump Spring Rates 400-2000
5/8 Bump Cups – Fit 5/8 Shock Shaft and Bump Spring Rates 400-2000
345 14mm Bump Cups – Fit 14mm Shock Shaft and Bump Spring Rates 3000 – 5000
345 5/8 Bump Cups – Fit 5/8 Shock Shaft and Bump Spring Rates 3000-5000

New Bump Stop Spring Rates:

ST300, ST450, ST550, ST650, ST700, ST750, ST850, ST900, ST950, ST1100, ST1300, ST1500, ST1700, ST1900, ST2500, ST3500, ST4500, ST6000 & ST7000

Part #RateColorPrice
Bump Cup 14mmBump Spring Rates 400-2000Gun Metal Gray $ 24.99
Bump Cup 345 - 14mmBump Spring Rates 3000-5000Gun Metal Gray $ 24.99
Bump Cup 345 - 5/8Bump Spring Rates 3000-5000Gun Metal Gray $ 24.99
Bump Cup 5/8Bump Spring Rates 400-2000Gun Metal Gray $ 24.99
ST400400Gun Metal Gray $ 55.00

Back Ordered
ST500500Gun Metal Gray $ 55.00
ST600600Gun Metal Gray $ 55.00
ST800800Gun Metal Gray $ 55.00
ST10001000Gun Metal Gray $ 55.00
ST12001200Gun Metal Gray $ 55.00
ST14001400Gun Metal Gray $ 55.00
ST16001600Gun Metal Gray $ 55.00
ST18001800Gun Metal Gray $ 55.00
ST20002000Gun Metal Gray $ 55.00
ST30003000Gun Metal Gray $ 55.00
ST40004000Gun Metal Gray $ 55.00
ST50005000Gun Metal Gray $ 55.00