This RC-scale front upper suspension arm set replaces the plastic originals with machined aluminum components for owners of Tamiya Hotshot platform cars. Designed to fit the Hotshot family and Boomerang 4WD variants, the arms provide a stiffer mounting point for the front suspension to reduce flex under load while retaining original geometry.
Installation is straightforward for anyone familiar with Hotshot-series servicing: remove the original upper arms, transfer any necessary hinge pins or bushings, and fit the aluminum arms using the stock mounting hardware. Check pin alignment and ball stud seating during reassembly to avoid binding in the steering and suspension travel.
Tuning role: these aluminum arms increase front-end rigidity which can sharpen initial steering response and reduce unwanted deflection during cornering or jumps. Use them as part of a balanced upgrade path alongside shock, camber link, and anti-roll bar adjustments. Because aluminum alters flex characteristics compared with plastic parts, small trim changes to camber and toe may be needed to restore handling balance.
Fit these arms when you want a durable, dimensionally stable front mount for setup work and consistent handling at higher cornering loads; validate steering geometry after install and re-check fasteners after the first run.
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