The GPM BMT056 is an alloy rear suspension arm made to fit HPI Bullet 3.0 MT and ST chassis. It is a direct-fit replacement that maintains standard geometry while replacing the original plastic arm with a tougher alloy component for nitro short-course machines.
This text outlines fitment considerations, simple installation checks, and how the arm contributes to chassis setup. The upgrade aims to improve load repeatability, reduce undesired flex during cornering, and offer greater durability for regular track use.
Apply standard RC fitting practice: inspect ball studs and mount hardware, check pivot pin engagement, and recheck toe and camber after installation to retain predictable handling characteristics.
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