FSA Orbit Equipe Headset FSA's Orbit Equipe Headset is a solid choice for 1-1/8" frames. It features a sturdy steel lower cup for maximum durability, and the top cup is forged alloy with an alloy top cover. Inside are two low maintenance, easy-to-replace sealed cartridge angular contact bearings. FSA Orbit Equipe Headset Specifications: Bearing type: Cartridge Crown race: 30 S.H.I.S lower: EC34 S.H.I.S upper: EC34 S.H.I.S. stem clamp diameter: 28.6mm Stack height: 28mm Weight: 117 grams | FSA Orbit Equipe Headset Black, 1 1/8"