Losi LOS233011 Shock Plastics Set is a shock rebuild parts kit for the Tenacity platform (SCT / related Tenacity models).
It is not a full shock or upgrade—it's the internal plastic hardware set used when rebuilding all four shocks.
This kit typically includes small components such as:
shock pistons
spring retainers / cups
spacers and internal plastic hardware
shock ends or mounting-related plastic pieces (varies slightly by revision)
These parts are what keep the shock absorber working smoothly inside the body. They control things like oil flow (through the piston), spring seating, and basic shock assembly alignment.
Over time, these plastic pieces can wear, crack, or become sloppy due to:
repeated crashes
dirt contamination
heavy jumping or bashing
shock rebuild cycles
When that happens, the shocks may feel inconsistent, leak, or not cycle smoothly even if the shafts and bodies are still fine.
In short, this set is used during a shock rebuild service, not as an upgrade or standalone performance part.
Summary
This is a maintenance kit that restores proper internal function of Tenacity shocks by