Neco Taiwan H189 1.25" Head Tube Reduced to 1-1/8 Fork Bike Headset 41.4-50.6mm Headtube (Black)
Use for 1-1/8" Tapered to 1-1/4" Fork Tube Crown Race: 33mm Fits Headtube(ID.): 41.4(upper)-50.6mm(lower)
Use for 1-1/8" Tapered to 1-1/4" Fork Tube  Fits Headtube(ID.): 41.4(upper)-50.6mm(lower)  Crown Race: 33mm   Stack Height: 12.2±1mm  For 1-1/8" Upper, 1-1/4" Bottom Steer  MATERIAL: 6061/T6 CNC Machined Top Cover with Seals  6061/T6 CNC Forged & CNC Machined Cups  Steel Crown Race   SHIS NORM: ZS41.4/28.6 | ZS50.6/33.0
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Neco
{"Item Package Dimensions L x W x H": "2 x 2 x 1.5 inches", "Package Weight": "0.09 Kilograms", "Brand Name": "Neco", "Part Number": "H189", "Date First Available": "May 9, 2017"}