Replace fragile plastic knuckles with the GPM MB021 alloy front and rear knuckle arms to give your HPI Minizilla stronger steering components and improved longevity. These precision-machined alloy parts are made to tighten steering response and resist wear under regular use. Hobbyists who want a dependable upgrade for spirited park sessions or club events will notice a firmer, more accurate feel compared with stock plastic pieces.
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