Mugen MTX-5 Spring Seat 7075 HARD by Arrowmax AM-MTX5-H2703  [AM-MTX5-H2703]

MTX-5 Precision Spring Cup in 7075

The Arrowmax AM-MTX5-H2703 spring cup is an RC-grade replacement for Mugen MTX-5 shock units, machined from 7075 aluminium to offer a tougher wear face than softer metals. It serves as the spring seat that positions and retains the shock spring on the shaft, contributing to steady spring placement and repeatable suspension response while tuning.

Compatibility and role: designed specifically for MTX-5 compatible shock platforms, this cup functions as a straightforward substitute or upgrade for original plastic or softer metal spring seats. The hard 7075 alloy helps cut down wear where the spring bears, keeping spring indexing reliable through repeated runs and setup iterations.

Fitting advice: inspect mating parts for any debris or burrs before assembly, slide the cup along the shock shaft to ensure unobstructed movement, and reuse the original retaining hardware with the recommended torque. Avoid forcing parts that do not line up, and check spring preload and free length after fitting to verify expected handling.