Serpent 500902 13mm 2-hole 1.7mm Shock Piston for RC Dampers  [SER500902]

13mm piston for RC shock dampers

This Serpent 500902 piston is designed for RC-scale dampers, specified for a 13mm bore with two 1.7mm ports. It replaces the internal piston element to control oil flow and allows finer incremental changes to compression and rebound during setup.

Installation: fit this piston inside shock shafts and bodies that accept a 13mm piston bore so it sits between the shock shaft and the piston head as part of the internal flow path. When fitting, confirm piston orientation and port alignment match the flow characteristic you want, and check the piston slides freely on the shaft without binding.

Tuning role: the two 1.7mm ports increase total flow area compared with a single smaller port, altering both compression and rebound damping. Use it in combination with oil viscosity, shim stacks, and spring rates to dial in traction or responsiveness.

Choose this piston when you need moderate flow for smoother mid-speed damping transitions, and always test adjustments on-track to confirm their effect on handling.