This alloy rear knuckle arm holder is an aftermarket replacement engineered for Kyosho Mini-Z AWD platforms and supplied as 1 pcs. The component adheres to the specified geometry with -0.2mm toe out and a 1.0mm thickness and is intended for direct replacement at the MR-03 AWD rear knuckle mounting point.
Fit and installation notes: designed for Kyosho Mini-Z AWD MR-03 AWD chassis; confirm the MR-03 AWD variant prior to installation. Original Mini-Z retaining screws and wheel hub hardware are typically reused; mount on a clean surface and torque fasteners to the same values used with the original holder to maintain alignment and preload.
Tuning role: the holder affects rear toe geometry and should be considered when tuning rear steering sensitivity or rear-end balance. The alloy construction increases mount stiffness relative to plastic, which can improve repeatability but may require small suspension or toe adjustments. Perform incremental changes and validate handling on a controlled test track.
Material and care: manufactured from alloy; clean contact areas after sessions, inspect threaded holes and bearing seats for wear, and replace if fitment or thread integrity is compromised.