Serpent 500915 13mm Rear Coil Spring 2.2lbs Blue  [SER500915]

Built for Rear Shock Assemblies

The Serpent 500915 rear spring is an RC-scale replacement intended for rear shock assemblies that accept a 13mm spring diameter. The product listing highlights the essentials: 13mm diameter, rear use, 2.2lbs spring rate and a blue finish.

Fitting is simple: compress the coil as required and position it over the shock shaft onto the spring cup or retainer that came with your shocks. After mounting, check that the spring is seated evenly and confirm ride height compared to the original spring before extended running.

When adjusting handling, a 2.2lbs spring rate gives firmer support compared with lower rates, which changes roll and turn-in response as well as rebound feel. Use modest preload changes and pair the spring with suitable shock oil to achieve progressive improvements without overreacting to a single change.