Tange Seiki Falcon FL250C classic 1 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: 30.0mm (head tube inner diameter), fork cone / fork crown race inner diameter: 26.4mm, stack height: 35.3mm), weight: 93g. Available in black, silver or silver polished. For installation and adjustment, headset wrenches with 32mm jaw width are required.