4C-120 Reinforcement Plate 49mm x 9mm - HA192 by Hatroi  [HA192]

Low-profile stainless reinforcement for 4C-120

The HA192 plate from Hatroi is an RC-scale stainless steel replacement made specifically for the 4C-120 platform. At a nominal 49mm by 9mm footprint, the flat, low-profile plate functions as a local reinforcement or mounting surface where extra rigidity is needed.

Compatibility is intended for the 4C-120 as noted; confirm the hole pattern and clearances against your chassis before attempting to fit it to other kits. The stainless material resists corrosion and preserves a flat mating face, making it preferable where a firmer junction is required compared with stock materials.

For installation, align the plate to the original mounting points and use the existing screws or equivalent fasteners that match the thread and length of the original hardware. Tighten evenly to avoid distorting the plate or mating parts, and do not overtighten. After fitting, verify clearances around suspension and drivetrain components.

As a tuning upgrade, the plate is a simple hop-up to increase local stiffness, reduce flex at the attachment area, and provide a consistent reference surface for setup and alignment. Fit changes incrementally and log handling differences during test runs.