Mugen MRX-5 Shock Shaft Set TiNi Upgrade - Arrowmax AM-MRX5-D0505  [AM-MRX5-D0505]

Upgrade shaft set for MRX-5 suspensions

The Arrowmax AM-MRX5-D0505 shaft set is supplied as four coated shafts tailored for Mugen MRX-5 shock assemblies. Each shaft combines a spring steel core with a titanium nitride (TiN) coating to decrease internal friction and improve wear resistance inside the shock tube. Intended use is hobby suspension tuning and standard maintenance rather than full-scale applications.

These shafts suit rebuilds or light upgrades of MRX-5 shocks where smoother shaft movement can lead to steadier damping and reduced seal wear. Installation involves removing the factory shafts and fitting the TiN-coated replacements, followed by inspection of seals and fit before run-in.

Fit these shafts to replace worn parts or to lower friction for more consistent shock response; always verify compatibility and check seals during installation.