Mugen MTX rear lower damper mount upgrade (7075) Arrowmax AM-MTX-H2115  [AM-MTX-H2115]

7075 aluminium lower damper stay for the rear

Arrowmax AM-MTX-H2115 is a rear lower damper stay made as an RC replacement and hop-up for the Mugen MTX line, with fitment referenced to MTX-5 chassis layouts. The unit ships as a 2 pcs set and is machined from 7075 aluminium, intended for use as a direct replacement or upgrade to the rear shock lower mounting point.

The stay locates the shock base and transfers dynamic loads into the rear bulkhead and suspension arms. Modelers often swap the stock stay for this machined 7075 piece to maintain alignment when switching shock assemblies, to replace damaged mounts, or to lock in geometry while tuning suspension settings.

Fitment advice: the stay mounts at the existing lower damper points on the chassis. During installation confirm hole alignment and thread engagement, recheck ride height and static droop, and inspect for any interference with nearby links. This product does not include step-by-step vehicle instructions and is intended for RC model use only.

Tuning note: 7075 aluminium reduces flex at the mounting interface compared with many stock materials, aiding repeatable shock geometry and making incremental damping or spring changes more effective for rear balance and traction tuning.