B 542 SS - 1-1/8 440C Stainless, Angular Contact Headset Bearing TH-873 Comes with it's own molded

Comes with it's own molded protective plastic case

440C stainless steel balls and races provide long life and superior corrosion resistance in applications and environments that may be less than ideal

BKS-0221 - T47-External

stainless steel is an excellent alternative for use in wet conditions

Machined Delrin Derailleur Pulleys for 12 speed Shimano XTR

B 542 SS - 1-1/8 440C Stainless, Angular Contact Headset Bearing TH-873 Comes with it's own moldedB 542 SS 1 1 8 stainless steel, Torque Tube Radial Design Headset bearing 1 5 16 x 1 3 4 x 9 32 inch Radial Bearing for Internal headsets, featuring 440C stainless steel balls and races to provide maximum corrosion resistance. Torque Tube bearings feature inner races that are slightly wider than the outer race. Not all stainless steel is created equal. Enduro only uses 440C stainless steel balls and races to provide long life and superior corrosion