13mm Internal Shock Spacer Compatible with 13mm Shock Bodies - Serpent 500899  [SER500899]

13mm spacer to tune shock response

The Serpent SER500899 13mm internal spacer fits inside 13mm shock bodies to modify internal volume and influence oil flow patterns, which changes the damper's compression and rebound characteristics. It offers a compact method to alter suspension behaviour without changing external components.

To fit the spacer, drain and open the shock, position the spacer per the shock's internal configuration, then rebuild and bleed the shock using the manufacturer's recommended steps. Replace worn seals and check the shaft for scoring to ensure reliable long-term performance.

Spacing adjustments are most effective when combined with deliberate oil weight and spring rate choices, letting you tune low-speed control, rebound behavior, and how the suspension uses its available travel for a given track condition.

Always test in small increments and note each change so you can backtrack settings that do not improve handling.