Kyosho Mini-Z MR-03 AWD Rear Knuckle Arm Holder CNC Alloy 1.0mm Thickness MZA031R-0410 by GPM  [MZA031R-0410]

Precision alloy rear knuckle arm holder

This machined alloy rear knuckle arm holder is engineered for Kyosho Mini-Z MR-03 AWD chassis as an aftermarket upgrade to improve mounting stiffness and enable fine rear-toe tuning. The holder is specified at -0.4mm toe out with a 1.0mm plate thickness and is supplied as 1 pcs for single-side installation or setup-specific swaps.

Engineering and fit: constructed from machined aluminium for repeatable fit and reduced flex versus stock plastic components, the part preserves wheel alignment under load and installs in the OEM rear knuckle arm locations used on MR-03 AWD platforms.

Tuning guidance: the -0.4mm rear toe setting moves tracking outward to influence rotation and mid-corner grip. Use this part as a controlled adjustment when optimizing turn-in and balance, and iterate roll centre and damper settings alongside geometry changes.

Service notes: intended for aftermarket RC Mini-Z AWD applications. Verify bearing and fastener condition when fitting, and perform a torque check after initial running to confirm secure installation and correct clearances.