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

Reinforced shaft set for MRX-5 shocks

The Arrowmax AM-MRX5-D0505 shaft set is a 4-piece replacement made for Mugen MRX-5 shock assemblies. Each shaft has a spring steel core with a titanium nitride (TiN) finish to cut internal friction and resist wear inside the shock body. This kit is intended for hobby RC suspension tuning and routine maintenance, not for full-scale vehicles.

Use these shafts when rebuilding or upgrading MRX-5 shocks to achieve smoother shaft travel and more consistent damping response while helping to reduce seal abrasion. Installation is done at the shock assembly level by removing the original shafts and fitting the coated replacements, then checking fit and seal condition before running.

Replace worn shock shafts or fit these coated shafts to lower internal friction for steadier shock performance; always verify compatibility and inspect seals during installation.