Kyosho Mini-Z MR-03 AWD Rear Knuckle Arm Upgrade Alloy 1.0mm -0.4mm Toe MZA031R-0410 by GPM  [MZA031R-0410]

Rear knuckle arm holder for Mini-Z AWD tuning

This alloy rear knuckle arm holder is built for Kyosho Mini-Z AWD cars as a replacement or upgrade part to fine tune rear toe and improve steering feel. The part specification shows -0.4mm toe out and 1.0mm thickness, and it is sold as 1 pcs for targeted tuning or single-side swaps.

Design and fit: the machined alloy body provides a firmer mounting surface than stock plastic, helping retain wheel alignment under load. It is compatible with MR-03 AWD layouts used on Mini-Z AWD models and mounts in the original rear knuckle arm locations.

Tuning role: moving the rear toe to -0.4mm shifts tracking slightly outward which can change rotation and mid-corner traction. Use this holder when tuning for snappier turn-in or to alter rear grip characteristics, and adjust shocks and roll centre in concert for best results.

Installation notes: this is an aftermarket aluminium component for RC Mini-Z AWD use only. Check existing screws and bearings when replacing parts, and re-tighten mounting hardware after a short run to verify clearance and fit.