Tange Seiki Falcon FL270C classic 1 1/8 inch threaded headset with excellent value for money. The headset cups are made of CNC-machined Dural aluminium and double-sealed Tange Seiki 4T5 cartridge ball bearings. Bearing cup outer diameter: 34.0mm (head tube inner diameter), fork cone / fork crown race inner diameter: 30.0mm, stack height: 36.5mm (11.5mm + 25.0mm), weight: 101g. Available in black or silver. For installation and adjustment, headset wrenches with 36mm jaw width are required.