The Kyosho IS106-7514 Big Shock Spring is an application-focused replacement spring for the INFERNO MP9, finished in medium gray with a 7.5-1.4 rate. It helps stabilise body roll and provides consistent compression feel under load.
With an 84mm length, this spring is aimed at builders who want to sharpen turn-in and maintain mid-corner grip. It works well when used alongside small shock oil and preload adjustments.
Designed to perform across a range of track conditions, the Kyosho Big Shock Spring keeps chassis feedback steady whether you are on loose soil or smoother surfaces. It is a simple upgrade to refine suspension tuning.
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