The Tamiya 51089 Ball Bearing Set is designed as a direct improvement for TB Evolution IV platforms, including TB-EVO IV and TB-EVO IV MS. These bearings aim to lower internal friction in rotating assemblies, improving smoothness and reducing component wear over time.
Replacing worn bushes or stock bearings cuts drag and heat build-up. The Tamiya 51089 components are sized for the TB Evolution IV layout to help maintain consistent handling and reduce unwanted drivetrain losses.
Press bearings squarely into clean seats and avoid contacting the inner race during fitting. A small amount of light oil keeps rotation free, and routine checks after a few outings will reveal whether further service is needed.
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