Description： *Brand new and high quality *Made of high-quality materials, durable *forged CNC machining shell, aluminum alloy material *2 stainless steel imported sealed bearings up and down, strong and durable, rotating.Flexible, quiet and silent *for electric bicycle head tube frame (both upper and lower) *for 28.6MM outer diameter upper tube (international standard) to use Specification: Name:Bicycle Fork Headset Weight: about 120g Material: Aluminum alloy Type: Bearing Bowl set Color: black red options 28.6mm diameter front fork top tube type A： Toothless bowl set type B : Teeth bowl set Package included: 1 set bike sealbearing headset 【 High quality Materials 】: We use high-quality materials to manufacture products, ensuring their quality and durability. We are committed to providing excellent product quality. 【Easy to use】: Our product design is simple, intuitive to operate, and even beginners can easily get started. We value user experience and hope you can easily enjoy the usage process. 【Durability and Practical】: Our products have undergone rigorous testing and verification, demonstrating excellent durability and practical functionality. No matter when or where you are, our products will always provide you with reliable performance and service. 【Our product is designed to provide help and fun for your project】, and will be your trusted assistant, bringing a joyful and satisfying experience. We look forward to your choice and are willing to share this joy with you. 【Excellent after-sales service】: No matter what problems you encounter, we will promptly solve them to ensure your satisfaction and shopping experience. If you have any questions about the product, please contact us and we will reply to you within 24 hours.