A twist on the classic. The Metallic series bearings are made with high purity, high quality carbon steel for the inner/outer rings and roller balls. Then they run the raceways and roller balls through a proprietary diamond finishing process. From there Quantum includes high tensile strength, hydrophobic retainers - these bearings were designed with stability, flow, and mechanical strength in mind.

Each bearing is coated using their GraphFlo(TM) process and “burned” in at high speeds. All Quantum bearings are tested before they are packaged/shipped to ensure consistency and 100% performance right out of the box.

Features:

• 8 x metallic Series bearings with GraphFlo(TM) ceramic technology
  
• 8 x metallic Series bearing shields with micro-ring for easy addition of lube while bearing is in wheel
  
• 8 x speed washers
• 3 stickers