Full Speed Ahead Integrated Headset Lower IS-2 1-1/8 IS41.2/30 36×45 Alloy w/Rubber Seal

Full Speed Ahead Integrated Headset Lower IS-2 1-1/8 IS41.2/30 (36x45) Alloy w/Rubber Seal. Replacement lower headset from FSA. TECH SPECS Bearing Type Cartridge Crown Race 30 Color Silver Lower Stack Height 1 S.H.I.S Lower IS41