Mugen MRX-5 Upper Arm Pivot Bush Kit compatible - Arrowmax AM-MRX5-H2120A  [AM-MRX5-H2120A]

Upper arm pivot bushes for MRX-5

This bush set is a scale RC accessory intended for the front upper arm mount of Mugen MRX-5 chassis, supplied under Arrowmax part AM-MRX5-H2120A. The notes below cover fitment context, safe installation practice, and how the bushes contribute to suspension geometry without claiming specific material details.

When to use: swap in this set to replace worn bushes or after straightening arms following an impact to recover steering precision and suspension geometry. The bushes interface directly with the front upper arm mount and influence pivot alignment, so check mounting points and arm bores for wear before installation. Always secure the model and follow the manufacturer recommended disassembly steps.

Setup impact: correctly seated bushes help keep articulation consistent through multiple runs, assisting stable handling while you test changes. When you tweak camber or toe via upper arm settings, double check bush seating and free play during your setup routine.

Owners of the MRX-5 looking to restore front upper arm accuracy will find the Arrowmax AM-MRX5-H2120A to be a direct-fit replacement that supports regular suspension setup work.