This aluminum center shaft cup joint is an RC-scale replacement part intended for the KYOSHO Fazer Mk2 FZ02 on-road chassis. It functions as a direct drivetrain coupling piece that mates with the center shaft assembly to transfer torque from the gearbox outputs to downstream drivetrain components.
On-track, the component replaces worn plastic cups and reduces rotational play at the center shaft interface, helping to stabilise drive behaviour while tuning gear mesh and driveline preload. The machined aluminum construction increases wear resistance over typical stock materials while retaining the correct form factor for Fazer Mk2 FZ02 fitment.
Installation notes: check the new cup against the existing center shaft and fasten with the original screws. You may need to clean mating surfaces or lightly trim adjacent clips after extended service. Use standard hobby tools and avoid over-tightening to prevent stress on gearbox parts.
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