This is an RC-scale aluminum rear hubs carrier made for the Kyosho Optima 2016 chassis and supplied under the JAZRIDER JR-OT13 identifier. The part replaces the rear hub carrier assembly to offer a stiffer mounting point for the rear suspension and wheel hub, keeping the fitment and geometry specific to Optima 2016 setups.
Installation follows standard rear hub carrier removal on 1/10 4WD buggies, using the vehicle's existing mounting points and fasteners. Check that your rear axle, wheel hex and wheel hub interface are clean and that any removed six-point or hex screws are reinstalled with appropriate thread engagement. No special tools are required beyond typical RC maintenance tools such as a hex driver.
From a tuning perspective, aluminum rear carriers are used to reduce flex in the rear hub area, which can make suspension responses more consistent during cornering and under power. When adjusting rear roll behavior or anti-squat settings, ensure the carriers align with your chosen shock positions and toe inserts to retain predictable handling.
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