Yokomo S4-S4AJ13 13mm Spring Adjuster for SO/MO2.0  [S4-S4AJ13]

Fine tuning for your suspension with Yokomo S4-S4AJ13

The Yokomo S4-S4AJ13 13mm spring adjustment nut gives RC drivers precise control over shock preload and suspension setup. Made to pair with SO/MO2.0 chassis, this nut helps you dial in spring tension for improved handling on race day.

Accurate shock preload adjustment

Getting the balance right in your suspension is key, and the Yokomo S4-S4AJ13 lets you micro-adjust big bore shocks to suit different track surfaces. Use this nut to alter ride height and initial spring tension without changing internal shock parts.

Fitment for SOR-020 and MOR-020 platforms

This 13mm adjustment nut is intended for use with the SOR-020, MOR-020, and SOR-020D chassis. Whether you need a softer feel for low-grip tracks or a firmer setup for quick direction changes, the part gives straightforward mechanical tuning options.