- premium bearings for maximum performance
- Deep Groove Raceways - specially designed raceways reduce side impact damage and breakage
- Micro Groove Raceway Surfaces - optimized inner surface of the bearing for more spin
- pre-lubricated with high speed nano-ceramic oil
- more protection against corrosion and lasting speed
- removable rubber shield for easy cleaning and less friction
- contents : 8 bearings and 4 spacer