Have you checked your wheel bearings recently?
 
They should be replaced every few years at best or more often if you ride in the wet as we do here on the West Coast. Check your side play occasionally to detect potential failures early enough.
 
If you are looking for the ultimate reliability before a long trip or are simply pushing your bike through hell and finding the OEM quality bearing does not long enough, this kit is for you.
 
Our high-performance kit uses better-quality bearings than OEM or aftermarket kits, such as All Balls or Moose Racing.
 
We use high-precision bearings from the Japanese brand Nachi or European brand SKF (same as high-quality manufacturers like FAG, KOYO, etc.) with advanced seal design providing constant smooth operation and long service life.
 
Select materials' rings and balls have superbly controlled accuracies, such as roundness, contour, surface finish, and hardness, to provide quieter operation, reduced vibration levels, and long life.
Rivet-type pressed steel cages for strength and durability.
High-performance grease for long life and low noise.

A unique lip design and seal groove combine to provide a labyrinth and steady seal contact. Unlike the OEM, they are sealed on both sides. The kit also contains new dust seals to rebuild and start 100% fresh fully.
 
Check our detailed article on How to Replace Your Wheel Bearings.
 
Note: This is a complete kit, including the sprocket carrier, AKA the cush hub drive bearing.
The sprocket carrier bearing is also sold here: Sprocket Carrier Bearing High-Performance Kit.