This damper tension shim is a precision tuning washer for KYOSHO Mini-Z AWD dampers that modifies internal shaft tension and clearance to refine mid-stroke response. It offers a targeted mechanical change to damping characteristics, useful for lap time driven adjustments and predictable corner behaviour.
Technical role: installed inside the damper cartridge or cap, the shim reduces free internal clearance and shifts preload locally, affecting how the damper transitions between compression and rebound. Its dimensions produce incremental changes intended for tuning rather than gross setup revisions.
Service notes: installation requires careful partial disassembly of the damper cartridge, correct placement at the specified axial location, and reassembly while confirming piston travel and seal alignment. Use clean tools and maintain oil cleanliness to avoid introducing particulates into the damping system.
Setup recommendations: perform single-step changes, logging each shim use and subsequent testing. Combine shim adjustments with spring rate and oil viscosity changes to achieve balanced entry and mid-corner behaviour for competitive running.