1-1/8 Inch Threaded REF#: 173610 Threaded Steel Headset 1-1/8x34x30mm Black. Neco Steerer OD: 1- 1/8 Inch (28.6mm)Cup: 34mmSize: 1-1/8 InchRace: 30Material: SteelColor: BlackType: ThreadedBrand: Neco Sign In to view pricing and availability