Yokomo YOKR12-18CR - Rear Shock Cylinder (Long) for R12  [YOKR12-18CR]

Rear long shock cylinder for R12

This long rear shock cylinder is an RC-scale damper part intended for use with R12-design rear shock assemblies. It provides a longer cylinder body option that alters available travel and internal oil volume compared with standard-length cylinders, and is intended to be used during suspension tuning or when replacing worn damper components.

Compatibility is limited to R12-configured rear dampers as indicated by the product designation. When fitting this cylinder, confirm piston, seal and shaft clearance match the existing rear damper stack, and inspect O-rings for proper seating to avoid leaks. Use appropriate shock oil and piston combinations for the target damping response rather than changing settings arbitrarily.

Tuning role: the longer cylinder body gives more internal oil capacity and can change travel characteristics, which helps when adjusting rear damping balance, rebound behaviour and chassis attitude during track setup or practice sessions. Work incrementally and document changes so results can be reproduced.