XRAY Rear Progressive Shock Spring Set (C=0.35-0.45/2-Stripes) (2)

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XRAY Rear Progressive Shock Spring Set (C=0.35-0.45/2-Stripes) (2)
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This is an optional XRAY Rear Progressive Spring Set, and is intended for use with the XRAY XB4 1/10 scale 4WD buggy. The XB4 includes Linear springs standard with the kit. These Progressive springs offer another option to fine-tune the buggy.

These XRAY Premium shock springs are designed specifically for big bore shocks. They have been manually measured, selected and matched into pairs to guarantee equal length and damping characteristics. The springs then receive a laser engraving for easy identification.

Rear XB4 Spring Rates:

  • XRA368273: Progressive, C=0.35-0.45/2 Stripes
  • XRA368284: Linear, C=0.35/1 Dots
  • XRA368285: Linear, C=0.40/2 Dots (Standard)
  • XRA368286: Linear, C=0.45/3 Dots
Effects of Shock Spring Changes
 Shock Spring  Characteristic
 Softer
  • Increased Chassis Roll
  • Increased Traction
  • Better in Bumpy Conditions
  • More Likely to Bottom Out
 Stiffer
  • Decreased Chassis Roll
  • Decreased Traction
  • Increased Responsiveness

This product was added to our catalog on January 9, 2013

Wednesday, Dec 9 2020 (about a year ago)
XRAY Rear Progressive Shock Spring Set (C=0.35-0.45/2-Stripes) (2)
Managed to find a set of these, they work very well for dirt racing, if you can find them.