CNC Bicycle Headset 44mm 1 1/8"-1 1/2" Straight Tube Frame to Tapered Tube Fork

Upper cup/Bearing outside diameter+ Lower cup/Bearing outside diameter + Fork tube ("44" for OD 44 mm, "T" for Tapered Tube fork) ZS44/28.6 EC44/40 44mm frame is designed for straight tube, but use this headset, you can install tapered Tube fork on 44 mm frame. MATERIAL: CNC MACHINED AL6061 T6 SEALD BEARING Package included: 1 x CNC Bicycle Headset