HPI Bullet 3.0 MT/ST Front Alloy Knuckle Arm by GPM BMT021  [BMT021]

Front alloy knuckle arm for HPI Bullet 3.0

This is an RC-scale front knuckle arm designed for HPI Bullet 3.0 MT and ST chassis, supplied as a 1 pr set by GPM under model BMT021. It is a direct aftermarket replacement part intended to restore or alter steering components on the designated Bullet 3.0 platforms without implying any road-vehicle use.

Functionally the knuckle arm locates the front wheel hub and transfers input from the servo and steering linkages into wheel steering. Replacing a worn or bent knuckle arm with an alloy unit can reduce play at the steering joints and provide a firmer mounting point for ball joints, pins, and bearings common to the Bullet 3.0 MT and ST setups.

Installation notes: verify orientation (left/right), reuse or replace existing pins and bushings as appropriate, and check steering geometry after fitment. Use typical RC hand tools such as hex drivers and pliers, and confirm smooth bearing and pin operation before final trims.

Use this alloy front knuckle arm when restoring steering precision on HPI Bullet 3.0 MT/ST models or when upgrading from plastic components for increased rigidity in RC running and maintenance scenarios.