The GPM BMT056 rear suspension arm is an alloy replacement intended for HPI Bullet 3.0 MT and ST kits. It replaces the standard plastic arm with a more rigid alloy part while maintaining the original geometry for straightforward fitment on nitro short-course vehicles.
This overview highlights compatibility, straightforward installation checks, and the arm's role in chassis setup. Riders will notice improved repeatability under load, reduced flex in fast corners, and a tougher option for frequent club track use.
When installing, follow common RC maintenance steps: check ball stud condition, confirm pivot pin seating, and re-align toe and camber after fitting to keep handling predictable.
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