The JR-THNE02-BK rear lower arm is an aluminum replacement made to withstand heavier duty running on the TAMIYA Hornet EVO (58742). The part is CNC-machined and black anodized to improve surface toughness compared with the stock plastic pieces.
These arms are suitable when you need longer-lasting rear-end geometry for rough tracks or frequent bashing where plastic components show accelerated wear. Factory mounting points and pivot locations are preserved so the arms work with the existing hubs, links, and shock mounts without any chassis changes.
Maintenance tip: periodically inspect the anodized finish and pivot bores for wear, and ensure bushings remain free of grit to maximize service life. Reuse the factory fasteners and torque settings when reinstalling.
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