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

Spring Specification and Use

The Serpent 500912 rear shock spring features a 13mm wire designation and a 1.9lbs spring rate, finished in orange and supplied as a direct replacement to alter suspension support and rebound. It is suitable for drivers wanting a firmer rear response without modifying shock bodies or mounts.

To fit the spring on most threaded-piston or cup-style rear shock assemblies, remove the end caps, take off the current spring and lower retainer, place the Serpent 500912 spring in position, and then reset preload and rebound settings. Only standard RC tools are typically needed for this swap.

In practice the 1.9lbs rate increases rear support and can quicken rebound relative to lower-rate springs, which affects corner entry and mid-corner balance. Pair spring changes with suitable shock oil and incremental testing to dial in desired handling.