RC racers aiming to sharpen their TRF421 setup will find the Tamiya 9803482 Upper Arm Mount A/B a dependable precision upgrade. It is intended to help refine suspension geometry and support stable behaviour during high speed runs on asphalt or carpet tracks.
Made to match the TRF421 chassis, the Tamiya 9803482 mounts cleanly and installs using standard RC tools. Constructed from quality materials, this upper arm mount gives solid support to the upper arms, helping deliver crisper turn-in and steadier cornering for track use.
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