The JR-KFZ201-GU aluminium centre shaft cup joint is an aftermarket replacement tailored to the KYOSHO Fazer Mk2 FZ02 chassis. It provides a gun-metal finished metal alternative where the original plastic cup can wear or flex with repeated running.
The component is machined to retain the original attachment points and aims to improve mechanical longevity while preserving driveline alignment. It is supplied as a direct-fit option for the specified Fazer Mk2 model to support hobby use under sustained conditions.
Installers should remove the OEM plastic cup and fit this aluminium unit using the existing hardware where appropriate. Post-install checks for smooth rotation and correct engagement with couplers and bearings are recommended.
Note: moving to an aluminium joint will affect drivetrain stiffness compared to plastic, and is commonly used as a modest durability and consistency upgrade by builders.