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Shock Absorption - RC metal swing arm reduces 85% of bumps and vibrations on rough terrains, ensuring smoother rides for your 1/16 scale RC car. Upgraded from plastic to sturdy aluminum alloy for SG1603/SG1604 versions. Accurate Crafting - Aluminum alloy swing arm features CNC-machined joints with 200% higher load capacity than plastic parts. Specially designed for UD1601/UD16024 RC cars to avoid arm fractures during jumps. 3-Minute Upgrade - No-tool installation process lets you replace broken plastic arms in 180 seconds. Direct fit for 1/16 scale versions including SG1604 and UD16024 without modifications. Weight Optimized - Aircraft-grade aluminum construction maintains original RC car balance at only 15% weight increase compared to steel alternatives. Won't overload your UD1601's suspension system. Extended Assurance - Rustproof aluminum alloy withstands 500+ hours of off-road use. Backed by 2-year replacement coverage against bending or deformation for SG1603 compatible versions.
