Serpent 500910 13mm Front Shock Spring - Green, 4lbs  [SER500910]

Short 13mm front spring, 4lbs rate

This Serpent 500910 is an R/C-scale shock spring made for front shock applications, featuring a 13mm active length and a 4lbs spring rate in green. It works as a direct replacement where compact 13mm coils are needed to alter front-end response or tune weight transfer on small-scale models.

Fitting is simple for those used to standard shock assemblies: remove the cap and shaft, slide the spring onto the shaft over the retainer, then reassemble while checking preload and travel clearance. Always confirm inner diameter and retainer style compatibility before fitting to prevent binding.

For setup, a 4lbs front spring provides firmer initial resistance versus softer springs, changing ride height and roll stiffness; use it to increase front support or to rebalance after other suspension changes. Pair with suitable damping and ride-height adjustments rather than relying on spring changes alone for optimal results.