Serpent 500909 Front Shock Spring - 13mm 3.8lbs Purple  [SER500909]

Serpent 500909 - front shock spring facts

This Serpent 500909 front shock spring is manufactured as a 13mm-length coil with a 3.8lbs nominal rate and a purple finish to suit coordinated builds. It is intended as an RC-scale replacement for front shock assemblies designed around 13mm springs and standard spring seats.

Compatibility: check that your front shock uses a 13mm spring length and a standard inner-diameter spring seat before installation. The spring alters front-end stiffness and should be part of an overall damping and preload strategy.

Installation overview: remove the shock cap and piston shaft, slide off the old spring, fit the Serpent 13mm spring onto the seat, set preload via the collar to match your setup, then reassemble. Ensure the shaft travels freely and the damper functions as expected after fitting.

Tuning role: adopting a 3.8lbs front spring increases spring force compared to softer springs, cutting down on roll and front dive while making steering feel firmer. Make adjustments gradually and retest, tuning shock oil and rebound to rebalance handling rather than relying solely on the spring change.