- Features grade 5, silicone nitride, hot isostatically pressed ceramic balls.
- Higher quality steel races and a superior surface finish.
- Single non-contact removable rubber shield for easy cleaning and less friction.
- High-speed nylon ball retainer for greater strength and speed.
- Pre-lubricated with Speed Cream racing lubricant.
- Skate Rated clearances, tolerances, materials and lubricants provide the best performance and durability possible.