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

Rear knuckle arm holder upgrade for Mini-Z AWD

This aftermarket rear knuckle arm holder suits Kyosho Mini-Z AWD MR-03 AWD cars and is supplied as 1 pcs. Forged from alloy, the part sets a permanent +0.3mm toe-in at the rear, allowing toe adjustments without replacing steering blocks.

Why fit it: add this holder to gain a subtle, consistent rear toe bias that improves straight-line tracking and helps control oversteer through corner exit on tight tracks and carpet.

Fitment notes: it replaces the stock rear knuckle arm holder on MR-03 AWD compatible setups and reuses original hardware and linkage geometry. A hex driver and basic toolkit are enough; check clearances and thread engagement after installation.

Durability tips: alloy construction increases stiffness and can alter feedback from the rear suspension. Regularly inspect mounting faces and fasteners to maintain safe running conditions.