About this item

• 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 lubricant provide the best performance and durability possible.