Bicycle Front Fork Headset Expansion Sunflower Core Screw(28.6MM)

1. Material: aluminum alloy
2. Process: CNC, anode
3. Application: applicable to 28.6mm outer diameter steel aluminum titanium full carbon fiber front fork
4. Three-petal diamond anti-drop pawl, install and tighten, firmly buckle the inner wall of the front vertical tube
5. Unlike ordinary steel sunflower, it can be used for full carbon fiber front fork, removable and can be installed multiple times
6. Simple installation, no socket tool is required to knock, only 8mm hexagon wrench is required for installation
7. Weight: 18.9g
8. Size: 25x22x22mm
9. Expansion: 21.5-25.4mm

Installation instructions:
1. Slightly tighten the screw by hand to expand the lower end slightly, presenting a shape of large top and small bottom
2. Insert the lower end into the front fork, and then adjust the upper end to the appropriate size to make it all enter; pay attention to make sure that it has a certain friction with the front fork tube wall
3. Adjust its depth to a position about 1cm lower than the upper end of the front fork
4. Use an 8mm hexagon wrench to tighten clockwise to about 6-8N.M
5. Install the front fork washer and stem, and make sure the edge of the stem is slightly higher than the sunflower by about 1-2cm