Parts/Suspension & steering/Shock parts & springs/Team KNK Boss Shocks Brass Lower Spring Retainer Cups (2) (4.3g)
Team KNK Boss Shocks Brass Lower Spring Retainer Cups (2) (4.3g)
Team KNK

Team KNK Boss Shocks Brass Lower Spring Retainer Cups (2) (4.3g)

Part # KNKSCUPB1
Where to buy
$11.99
AMain Hobbies
Seen Oct 12, 2026
$11.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

Spring Cups Overview:

Upgrade your suspension game with the Team KNK Brass Lower Spring Retainer Cups, specially crafted for the 90mm Boss Shocks to deliver added weight right where you need it for better balance, sharper handling, and a rock-solid stance on any terrain.

About the Brass Spring Retainers


Strength, Balance & Control

The Team KNK Brass Lower Spring Retainer Cups are precision-engineered for the 90mm Boss Shocks, offering a perfect fit with a clamping-style design for maximum security. Weighing 4.3 grams each, these heavy brass retainers strategically add low-mounted weight to enhance stability and lower your vehicle’s center of gravity.

A fully machined slot allows easy spring changes without removing the rod end, while the sleek, durable finish resists wear and adds a clean look. Ideal for performance-focused builders, these cups improve handling and provide a functional upgrade with a premium feel.

Features:

  • Fits 90mm Team KNK Boss Shocks
  • Adds a total of 8.6g for better stability and crawling performance
  • Made from strong, heavy brass
  • Easy spring changes with slotted design
  • Clamping style for a secure fit
  • Durable finish that looks great

Includes:

  • (2) Boss Shocks Brass Lower Spring Retainer Cups
CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

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