FSA Upper O-Ring for Orbit MX/X 1-1/8" - Black

FSA Upper O-Ring for Orbit MX/X 1-1/8" - Black. FSA (Full Speed Ahead) headset seals and O-rings are integral components designed to enhance the durability and performance of bicycle headsets. These seals are engineered to prevent contamination from dirt and moisture especially in rugged or muddy riding conditions.