This set swaps the original plastic upper arms for precision-machined aluminium units to reduce front-end compliance on Hotshot-series RCs. The parts keep original geometry so alignment and roll center remain consistent while providing a firmer mounting point.
Fitting requires standard hobby skills: remove the stock arms, move over any pins or spacers, and secure the new arms with the factory screws. After installation, confirm that steering linkage and suspension travel are free from binding and that ball studs seat correctly.
Tuning impact: by stiffening the front mounts these arms can improve turn-in and lower the chance of unpredictable deflection over jumps. Consider pairing them with shock valving and camber link adjustments to regain the desired handling balance.
Install these arms when you want clearer steering feedback and a stable front end for setup work; re-check fastener torque after initial runs and make incremental setup changes to tune handling.
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