Yokomo YOKYS1380 - Green HSS Long Shock Spring  [YOKYS1380]

Extended HSS spring for RC shock adjustments

The Yokomo YOKYS1380 HSS long shock spring in green is intended as an aftermarket replacement for general shock absorber assemblies on scale RC models. Supplied singly, it changes the spring curve behavior by offering a longer working length than standard short springs.

Because of its length, this spring shifts the relationship between compression and rebound and can be used to raise ride height without immediately altering damper pistons or oil. It is useful where extra suspension travel or increased static clearance is required.

Fitting is the usual coil-spring method: remove the shock cap and retainer, place the spring over the shaft onto the shock body, set the desired preload and reassemble. After installation, cycle the suspension to check for binding and ensure there is no interference with other chassis parts.

When evaluating handling, pair this spring with incremental preload changes and conservative damper adjustments so you can assess effects step by step. Treat it as one element in a broader setup process aimed at predictability and balance.