13mm Red Front Shock Spring (3.4lbs) Serpent 500906  [SER500906]

13mm Front Spring - Technical Notes

The Serpent 500906 is a 13mm-diameter front shock spring with a 3.4lbs rate in red, intended as a tuning or replacement part for front shocks that accept 13mm coils. It provides a specific spring rate to influence chassis balance and steering response.

To fit the spring, follow routine shock service: disassemble the shock unit, remove the existing spring, slide the 13mm Serpent 500906 onto the shaft, adjust spring seat and preload, then rebuild the shock. Ensure the coil seats evenly on the retainer and that the shock cycles freely through its travel.

From a tuning perspective, the 3.4lbs rating will firm the front end and sharpen handling feedback; install it when seeking reduced roll or more immediate turn-in. Always pair spring swaps with consistent damper oil and preload settings to isolate the effect of the spring change.

Sold as an aftermarket RC component, this spring is for controlled setup and maintenance of front suspension on compatible 13mm shock assemblies.