One of the common ball bearing retainer sizes (5/16” X 22balls) for 1 1/8” external cup headset. (Since some 1 1/8” external cup headsets may use 20-ball bearings, please always measure your original parts to ensure you are ordering the right replacement parts)
Made of high-quality carbon steel material.
Lubricated for corrosion resistance and long service life. Please still put some lubricant during installation to maximize its service life
These bearing cage could also replace loose bearings