Mugen MRX5 Shock Spring Seats 7075-T6 - AM-MRX5-H0555 by Arrowmax  [AM-MRX5-H0555]

Replacement spring seats for MRX5 shocks

This four-piece set of shock spring supports is made as a direct replacement for Mugen MRX5 shock assemblies. Machined from 7075-T6 aluminium, the retainers are milled to remove non-structural material while keeping crucial strength where needed, cutting rotating and reciprocating mass on the shock shaft without changing fitment.

These parts serve as the lower spring seating on MRX5 shocks, keeping the coil in a repeatable position so preload and ride-height adjustments are consistent. The focus is on reliable contact and concentric seating rather than cosmetic alterations.

Fitting is simple: take off the stock spring support from the MRX5 shock and install the Arrowmax retainers in the same orientation as the original parts. No special alterations to the shock body are required and only common shock disassembly tools are needed.

During setup and testing the machined seats help keep spring location steady between runs, which can improve repeatability when changing springs or fine-tuning preload settings on the chassis.

A practical machined replacement for MRX5 spring seats designed to stabilise spring positioning and support consistent setup outcomes when used with standard MRX5 shock assemblies.