MUGEN MBX Center Cup Joint spring steel by Arrowmax AM-MBX-E0229  [AM-MBX-E0229]

Center cup joint for MBX

This Arrowmax AM-MBX-E0229 center cup joint is an RC-scale spare designed for MUGEN MBX drivetrains, made from spring steel for resilience under load. It serves as the central coupling between driveshaft elements, providing a predictable pivot point that affects center driveline behaviour and feel.

Fitment is focused on MBX-series setups; check your chassis layout before replacing the part. Installation typically involves removing the center shaft assembly, replacing the cup joint, and reassembling with existing hardware. No special tools beyond basic hex drivers are required, but inspect mating surfaces and retainers for wear during service.

For tuning, this joint is a wear item that can influence drivetrain smoothness and transient response. Regular inspection helps maintain consistent center torque transfer and reduces binding in tighter setups. Use conservative break-in and verify free play after installation.

As a direct-replacement center cup joint for MBX layouts, this part is intended for routine maintenance and precise drivetrain setup adjustments on RC models using the MBX platform.