Lucky Starnut 23mm - 1-1/8 inch Threadless Headset Star Nut - Black

The Lucky Starnut 23mm is a high-quality press-fit star nut designed for 1-1/8 inch (28.6mm) threadless steerer tubes. Made from durable steel with a corrosion-resistant black coating, this star nut provides a secure anchor point for the top cap bolt in bicycle headset assemblies. Its 4-prong design ensures a firm grip inside the steerer tube, and the M6 inner threading accommodates standard top cap bolts. Ideal for bike mechanics and enthusiasts, this star nut is easy to install with a compatible star nut setter tool (not included).

Advantages

Reliable and robust construction ensures long-lasting performance. The black coating offers excellent corrosion resistance, making it suitable for various riding conditions. The 23mm outer diameter fits perfectly into 1-1/8 inch steerer tubes, providing a stable foundation for headset adjustment.

Suitable for

• Bicycle headset assembly and maintenance
• Replacement of worn or damaged star nuts
• Custom bike builds requiring a secure top cap anchor

Key specifications

• Product Type: Headset Star Nut
• Steerer Tube Compatibility: 1-1/8 inch (28.6mm) Threadless
• Outer Diameter: 23 mm
• Material: Steel
• Color: Black
• Installation Method: Press-fit
• Required Tool: Star Nut Setter Tool (not included)
• Function: Provides anchor point for top cap bolt
• Application: Bicycle Headset Assembly
• Approximate Weight: 12 g
• Corrosion Resistance: Yes (coated)
• Number of Prongs: 4
• Overall Height: 12 mm
• Inner Threading (for bolt): M6 (standard top cap bolt)
• Quantity: 1 piece

Recommendations

For best results, use a dedicated star nut setter tool to ensure proper alignment and depth. Always check compatibility with your steerer tube inner diameter before installation.