MUGEN MBX F/R Cup Joint (spring steel) by Arrowmax AM-MBX-E0228  [AM-MBX-E0228]

F/R Cup Joint role and fit

This Arrowmax AM-MBX-E0228 F/R Cup Joint is an RC-scale replacement part intended for use on MUGEN MBX chassis. The component is formed from spring steel and serves as a front and rear cup joint to link steering and drive linkages. It is described here in a neutral technical tone to clarify fit, installation considerations, and tuning impact without overstating performance.

Fit and function: the cup joint replaces worn or damaged linkage ends that affect steering accuracy and drivetrain alignment. As a direct replacement part it helps restore intended geometry and provides predictable behaviour during chassis setup and tuning sessions.

Installation notes: inspect mating pins and linkages for wear before assembly, fit the cup over the pin with correct clearance, and verify free movement in suspension travel and steering throw. Small adjustments to turnbuckle length or linkage angles may be required after installation to retain original alignment.

Use this cup joint as a like-for-like replacement when restoring MBX linkage geometry or when selecting durable spring-steel parts for routine maintenance and setup work.