TRAXXAS TRX-4 Trail Crawler Brass Front Bumper Mount and 25T Aluminum Servo Horn by GPM TRX431FX25TS  [TRX431FX25TS]

Front bumper mount and servo horn for TRX‑4

This GPM aftermarket set is an RC-scale front bumper mount and steering assembly designed for Traxxas TRX-4 trail crawlers. It combines a brass front bumper mount with a 25T aluminum servo horn and a spring steel steering link package to provide a compact solution for front-end stabilization and finer steering adjustment without altering the vehicle's original chassis components.

Primary roles are straightforward: the brass mount stabilizes the bumper and adds measurable front-end mass for improved weight distribution, the aluminum servo horn offers a straight-arm, dual-hole layout for tie-rod length tuning, and the included spring steel link improves durability under load. The kit also supplies a full hardware set to replace or upgrade the stock fasteners when fitting the mount and horn.

Intended for scale trail use and tuning work, this assembly helps set the servo slightly forward to shift the front center of gravity, and provides an accessible method to test added nose weight (approx. 200g reported use) and quick tie-rod geometry changes without major chassis modification. This is an RC accessory only and is not for real vehicle use.

For TRX-4 owners focused on axle weight balance and sharper steering feedback, this GPM set provides a compact, reversible upgrade path; verify screw lengths and test steering throw after fitment to ensure clearances and correct tie-rod geometry.