The OEM steering head bearings in the GL1800 are old style ball bearings in a plastic case. These style bearings are more likely to develop a detent in the center of the steering sweep, cause damage to the races, and damage the plastic case. All of which can lead to a front end wobble and unstable feeling.
The All Balls steering head bearings are a needle style bearings which distribute the load more evenly across the race and are far more durable than OEM. The All Balls are a key to help in reducing and eliminating the famous GL1800 wobble.
These bearings are a direct replace for OEM. Kit includes upper and lower bearings, upper and lower races, and seals.