This JR-KFZ201-GU aluminum center shaft cup joint is manufactured as a metal replacement for the Fazer Mk2 FZ02 center driveline cup. It targets wear and flex issues that can develop with the factory plastic component during repeated track or street use.
The part is machined from aluminum with a gun-metal finish to provide a more durable alternative while retaining the original mounting geometry. As a direct replacement for the specified Fazer Mk2 FZ02 centre cup joint, it aims to ensure consistent mechanical fit and extended service life for hobby use.
Installation is straightforward for technicians familiar with Fazer Mk2 maintenance: remove the original cup joint from the center shaft and fit the aluminum unit using the stock hardware. After installation, inspect driveline alignment and free rotation to confirm correct engagement with adjacent couplers and bearings.
Tuning note: this aluminum cup joint will alter drivetrain stiffness versus the stock plastic item; many builders choose it as a small durability upgrade that can also yield more consistent feedback during long runs.
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