The JR-TA703-LB hub carrier is a blue-anodized aluminum rear upright made to fit the TAMIYA TA07 chassis. It secures the wheel hub and joins steering and suspension links; the metal construction offers higher stiffness than stock plastic, which can improve consistency in roll behavior and lateral grip when setting up the car.
Fitting is straightforward for those experienced with TA07 maintenance: remove the rear upright assembly, swap the factory carriers with the alloy pieces, and refasten using the original wheel hub hardware. Always check hinge-pin alignment and reassess camber and toe after refitment, then complete slow test laps to confirm handling effects before advancing any setup changes.
From a tuning perspective the part helps deliver clearer rear-end feedback and a stiffer pivot for adjustable suspension geometries, aiding repeatable changes when moving shock mounts or camber link positions.
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