MBX Center Cup Joint Spring Steel for MUGEN - Arrowmax AM-MBX-E0229  [AM-MBX-E0229]

Replacement centre cup for MBX drivetrains

The Arrowmax AM-MBX-E0229 centre cup joint is an RC spare built for MUGEN MBX drivetrains, manufactured from spring steel to handle repeated loading without premature fatigue. It functions as the central coupling between driveshaft sections and delivers a stable pivot point that influences centre driveline behaviour and feel.

Fitment targets MBX-series layouts; confirm your chassis parts list before ordering. Typical installation requires removing the centre shaft assembly, swapping the cup joint, and refitting with the original hardware. No specialised tools are necessary beyond standard hex drivers, though it is good practice to check mating surfaces and retainers for wear while servicing.

As a wear item, this joint can alter drivetrain smoothness and transient response during tuning. Carry out conservative break-in and check for free play after fitting to maintain consistent centre torque transfer and reduce binding in tight setups.

This Arrowmax centre cup joint is intended as a direct-replacement maintenance part for MBX layouts and for fine tuning driveline behaviour on models running the MBX platform.