Yokomo Z2-S1S2A Front Shock Set  [Z2-S1S2A]

Front shock technical summary

The Yokomo Z2-S1S2A Front shock set (X33 type) is an RC-scale front damping assembly that uses a threaded piston-shaft design to secure the piston to the shaft. The set emphasizes shaft stiffness and improved sealing to maintain consistent damping response in the front end of B-YZ2 series chassis.

Key mechanical traits include a 3.3mm rigid shock shaft and an X cross section O-ring that reduces shaft friction while enhancing seal performance. The threaded shaft design allows secure piston attachment, reducing piston shift under load and helping preserve damping consistency during competitive runs or practice sessions.

This kit does not include shock springs or shock oil, both of which must be purchased separately to tune ride height and damping characteristics. When installing, verify piston alignment and O-ring seating to avoid leaks, and select shock oil viscosity and spring rate appropriate for your track conditions and setup goals.

This front shock set is intended as a direct-replacement option for the listed B-YZ2 variants where a stiffer shaft and improved sealing are desired; plan on obtaining compatible springs and shock oil to complete tuning and match your preferred damping characteristics.