This alloy rear hub carrier is produced for the Kyosho Optima 2016 chassis and is identified by model JR-OT13. It replaces the original carrier to create a stiffer mount for the rear suspension and wheel hub while keeping the correct Optima 2016 geometry.
Installation uses the same mounting points as the stock part on 1/10 4WD buggies. Clean axle ends, wheel hexes and hub faces, then refit screws with proper thread engagement. Standard RC hex drivers and hand tools are sufficient for the job.
As an upgrade, an aluminium carrier reduces rear hub flex to give more consistent suspension action under cornering and acceleration. When tuning anti-squat or rear roll, check that the carrier aligns with chosen shock positions and toe inserts to retain predictable handling behavior.