Tecora E EC34 1 1/8 inch ahead threadless headset with headset cups made of aluminium with steel treads and sealed cartridge bearings. Incl. headset top cap and claw. Bearing cup outer diameter: 34mm (head tube inner diameter), fork cone / fork crown race inner diameter: 30.0mm, stack height: 27.5mm, weight: 108g. Available in silver or black.