Mini-Z AWD Rear Knuckle Arm Holder Upgrade MZA031R/+0.3 by GPM  [MZA031R/+0.3]

Rear arm holder tuned for Mini-Z AWD handling

This aftermarket rear knuckle arm holder is compatible with Kyosho Mini-Z AWD MR-03 AWD chassis and is supplied as 1 pcs. Manufactured in alloy, it delivers a fixed +0.3mm rear toe-in to adjust geometry without altering the original steering block layout.

Tuning intent: the holder gives a modest rear toe-in increase to stabilise mid-corner balance and reduce sudden oversteer on short, technical circuits.

Installation guidance: the part replaces the standard rear knuckle arm holder on compatible MR-03 AWD models and uses existing mounting points and fasteners. Fit with basic tools and confirm clearances and thread engagement before track use.

Material effects: alloy increases stiffness compared with plastic holders and may change suspension feedback. Check mating surfaces and torque regularly to prevent loosening under load.