Highly recommended!
Precision ground, Skate Rated™ Racing bearings by Bones®
Removable high-speed Nylon™ ball retainers
Removable Non-Contact frictionless shield for easy cleaning
Integrated bearing spacer to provide perfect 0.400" spacing
Extended race replaces need for spacers and washers
Extended race provides perfect alignment for greater speed and axle reinforcement
Fewer parts mean faster set up