XRAY T4 Rear Topdeck 2.0mm Stiffening Plate - Arrowmax AM-920014  [AM-920014]

Rear topdeck upgrade for XRAY T4 FWD

The Arrowmax AM-920014 2.0mm rear topdeck is a direct-fit replacement plate for XRAY T4 front-wheel-drive chassis and is intended to change rear torsional stiffness and balance. Use it as a tuning part to influence how the rear end reacts during corner entry and traction transitions, particularly for on-track setup refinement.

Fitment targets XRAY T4 FWD layouts as indicated, using the T4 chassis mounting points and standard hex fasteners. Installation is straightforward for experienced builders: remove the factory plate, align this 2.0mm topdeck to the posts, then install screws evenly to prevent preload or warping.

This topdeck raises rear stiffness relative to stock, which usually sharpens turn-in and shifts mid-corner traction feel rather than changing suspension geometry. Combine this change with roll centre tweaks, shock valving and sway bar selection to reach the desired balance. Check screw torque and contact surfaces regularly to keep behaviour consistent.