This RC-scale replacement part provides front and rear upper arms intended for TAMIYA Thunder Shot, Thunder Dragon and Fire Dragon chassis, supplied as a 2pcs set in black. The component is described as an aluminum unit intended to be a direct-fit upgrade using the vehicle's existing mounting points.
Installation notes: these arms are intended to replace factory plastic arms on compatible Thunder series buggies and typically mount to the same hinge points and hardware used by the original parts. No special tools are specified here, and hobbyists should reuse existing pins and screws where they match the original layout.
Tuning role: fitted aluminum upper arms increase component stiffness relative to standard plastic arms, which can change suspension response and load transfer. Use them as part of a chassis setup aimed at reducing arm flex and refining suspension feel, while observing that handling changes depend on overall suspension setup.
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