They’re a top selling bearing which many skaters swear by.

Each Bones Race REDS Bearing is made with upgraded top quality bearing steel, ground to perfection and polished, best for racers who use precision trucks and properly tighten their axle nuts

Precision ground extended race eliminates the need for speed washers, and provides better alignment of the bearings when the axle nut is tightened.
Features

• 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
• Lubricated with Bones Speed Cream R.F