Yokomo YOKYX-40SS Silver Spring for Pitching Damp Shocks  [YOKYX-40SS]

Spring Specification for Pitch Control

The Yokomo YOKYX-40SS serves as a dedicated RC-scale spring for pitching-damp shock units. It is offered as a tuning or replacement option where pitch control of the chassis is a tuning goal. The silver finish is intended purely for appearance to suit model styling.

To fit the spring, remove the shock cap, compress the assembly as required, slide the spring over the damper shaft and seat it on the spring retainer or lower perch. After fitting, confirm that the spring is seated correctly and set the required preload to ensure smooth, full travel without binding.

In setup terms, switching spring stiffness affects pitch: a firmer rate resists nose dive and reduces pitch under braking or acceleration, while a softer rate gives more pitch motion and a gentler initial response. Combine spring choice with damper oil and piston selection to achieve the desired balance, then test changes on the track to evaluate handling.