The Serpent 500905 spring is a 13mm-diameter front shock coil offered in orange and rated at 3.3lbs. It is used to alter front-end stiffness as part of mechanical suspension setup, helping to refine handling for different driving conditions.
This item is compatible with front shock assemblies that accept a 13mm coil profile; verify clearance with your spring perch, shaft, and shock cap before purchase. Remember, this is a replacement/upgrade spring and not a full shock absorber.
To install, remove the shock from the vehicle, take off the shock cap or retainer, replace the spring, and reassemble while setting preload and free length to match your tuning goals. After installation, check for smooth shaft movement and proper spring seating during full travel cycles.
Practical tuning advice: fitting a 3.3lbs front spring increases front firmness versus softer options, which influences braking dive, roll control, and entry behavior. Adjust damping and ride height in concert to retain a balanced setup.
