Serpent 500916 Rear Suspension Spring 13mm 2.3lbs  [SER500916]

Rear Shock Spring 13mm — 2.3lb Rating

This Serpent 500916 coil is a 13mm-diameter rear shock spring finished in purple with a nominal 2.3lbs spring rate. It is supplied as a direct replacement option for adjusting rear suspension firmness without altering damper internals.

In practical terms the spring influences static ride height and the linear portion of suspension stiffness via preload and fitted length. On installation, confirm the spring seats and retainer type on your shocks so the spring locates correctly and allows full travel. Keep in mind that spring rate and damper oil viscosity must be tuned together to balance rebound and compression control.

Practical tips: move the shock through full travel to check for any binding, increase preload gradually and record the resulting handling changes. Maintain the purple finish by keeping the spring free of grit to ensure consistent seating.