This is an alloy rear knuckle arm holder designed for Kyosho Mini-Z AWD platforms, supplied by GPM under part MZA031R+0210. It is an RC-scale replacement part intended to stiffen the rear knuckle mounting area and provide a consistent 0.2mm toe-in reference while using a 1.0mm thick alloy plate to reduce flex compared with stock plastic components.
Use and tuning role: the part is aimed at drivers who want repeatable toe settings for rear-end tuning, particularly on micro touring and Mini-Z AWD race setups. Specified toe-in affects tracking and cornering behaviour at this scale, so the holder serves as a hardpoint for knuckle geometry and alignment adjustments rather than an active suspension element.
Installation notes: the holder installs into the standard Mini-Z AWD rear knuckle area and uses the car's existing mounting hardware, check thread engagement and torque values when fitting alloy to plastic mating parts. No additional modifications to the chassis are required for standard MR-03 AWD style rear knuckles when compatible hardware is present.
Package detail: sold as 1 pcs, GPM design MZA031R+0210, intended for model-level maintenance and tuning tasks on Kyosho Mini-Z AWD cars.
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