Serpent 500912 13mm Rear Shock Spring, Orange, 1.9lbs  [SER500912]

Rear Spring for Precise Suspension Adjustment

The Serpent 500912 rear shock spring is supplied in orange with a 13mm wire size and a 1.9lbs spring rate, offering a direct-fit option to modify rear shock support and rebound characteristics. It is designed to be used on rear shock assemblies to change handling response without replacing shock bodies or mounts.

Installation is straightforward on common threaded-piston or cup-style rear shocks: remove the shock end caps, slide off the existing spring and lower spring retainer, fit the Serpent 500912 spring, then reset preload and rebound to your preferred starting point. No specialist tools are required beyond standard RC maintenance tools.

As a tuning component, the firmer 1.9lbs rate provides increased rear support and a marginally quicker rebound versus softer springs, which can help balance understeer and oversteer when combined with appropriate shock oil and preload adjustments. Make incremental changes and record settings to compare handling on-track.