Aluminum Bike Stem Headset Top Cap For 1 Inch And 1.25 Inch Forks Fork Expander Bung Plug Reusable And Safe Black Finish Tight Grip For Smooth Steering Rock Solid Durable Easy Install For Everyday Trail Riding

Aluminum Stem Headset Top Cap for 1 inch and 1.25 inch forks
✔️ 1 set includes top cap, bolt, expander; fits 28.6mm forks (1.1")

This aluminum headset top cap with fork expander is a reusable replacement component for the star nut, designed to secure the fork and maintain smooth steering on daily trail rides. Compatible with forks sized 1 inch and 1.25 inch, it works with carbon fiber and alloy forks.

✅ Material: 304 stainless steel screw + 6061 aluminium alloy
✅ Outside Diameter: 28.6mm / 1.1"
✅ Expanded Range: 22.2-25.4mm / 0.8"-1"
✅ Includes: 1 headset top cap, 1 steel bolt, 1 expander plug
✅ Color: Black

💡 What is a bicycle stem headset top cap with expander used for?

This handy piece replaces the traditional star nut and top cap, securing the fork steer tube and helping maintain precise steering. - Replaces star nut and top cap on many bikes
- Fits 1 inch and 1.25 inch forks
- Made from 6061 aluminium alloy and stainless steel
- Easy install with a hex wrench
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