Serpent 500915 Shock spring 13mm rear 2.2lbs blue  [SER500915]

Rear 13mm shock spring

This Serpent 500915 rear shock spring is an RC-scale replacement coil intended for rear shock assemblies that accept a 13mm spring diameter. The product name defines key attributes: 13mm size, rear application, 2.2lbs spring rate and blue color.

Installation is straightforward: compress the spring as required and fit it onto the shock shaft over the spring cup or retainer supplied on your shock body. Check spring seating and ride height after installation, and compare with the original spring to confirm correct placement before final run-in.

In tuning, a 2.2lbs spring rate increases spring stiffness relative to softer options, affecting body roll, corner bite and rebound balance. Use this spring in combination with appropriate shock oil and preload adjustments to refine handling; small incremental changes yield clearer feedback during testing.