2X RISK Dual-Use Bicycle External Cup Headset For 44Mm Straight Head With 28.6Mm Straight Fork Or 1.5 Taper Pipe Fork Double bearing design to make your bicycle more lubricated. More flexible. Dual-use design, For 28.6mm Straight Fork or 1.5 Taper Pipe Fork Built-in waterproof and oil-proof gasket. Strictly selected 6061 aluminum alloy material CNC process, anodizing coloring. The surface is smooth and not easy to lose color. Durable. Name: 44mm external bearing bowl set Model: DH-44F Specification: 28.6 or 1.5 inch non-standard small cone tube fork Assembly height: 7.3+13=20.3mm Applicable head tube: 44-44mm Applicable front fork: standard cone tube/straight tube general Colour:Black Material:metal Size:44mm Package Contents: 2 x Bicycle External Cup Headset Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.