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

Front shock spring: compact 13mm, 4lbs

The Serpent 500910 shock spring is a compact front coil for R/C shocks, featuring a 13mm active length and a 4lbs spring rate finished in green. It is intended as a direct replacement for short-sprung setups that need firmer front support or refined weight transfer control on smaller models.

Fitting involves standard shock disassembly: remove cap and shaft, slide the spring over the shaft onto the retainer, and reassemble while checking preload and clearance. Verify inner diameter and retainer compatibility to prevent binding during operation.

In tuning terms, a front-mounted 4lbs spring provides stronger initial support and increased roll stiffness; use it to correct front under-support but coordinate with damping and rear spring choices for a balanced setup.